1331 lines
36 KiB
C++
1331 lines
36 KiB
C++
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "bvh.h"
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#include "bvh_build.h"
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#include "camera.h"
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#include "curves.h"
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#include "device.h"
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#include "shader.h"
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#include "light.h"
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#include "mesh.h"
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#include "object.h"
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#include "scene.h"
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#include "osl_globals.h"
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#include "util_cache.h"
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#include "util_foreach.h"
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#include "util_logging.h"
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#include "util_progress.h"
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#include "util_set.h"
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CCL_NAMESPACE_BEGIN
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/* Triangle */
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void Mesh::Triangle::bounds_grow(const float3 *verts, BoundBox& bounds) const
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{
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bounds.grow(verts[v[0]]);
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bounds.grow(verts[v[1]]);
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bounds.grow(verts[v[2]]);
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}
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/* Curve */
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void Mesh::Curve::bounds_grow(const int k, const float4 *curve_keys, BoundBox& bounds) const
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{
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float3 P[4];
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P[0] = float4_to_float3(curve_keys[max(first_key + k - 1,first_key)]);
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P[1] = float4_to_float3(curve_keys[first_key + k]);
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P[2] = float4_to_float3(curve_keys[first_key + k + 1]);
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P[3] = float4_to_float3(curve_keys[min(first_key + k + 2, first_key + num_keys - 1)]);
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float3 lower;
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float3 upper;
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curvebounds(&lower.x, &upper.x, P, 0);
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curvebounds(&lower.y, &upper.y, P, 1);
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curvebounds(&lower.z, &upper.z, P, 2);
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float mr = max(curve_keys[first_key + k].w, curve_keys[first_key + k + 1].w);
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bounds.grow(lower, mr);
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bounds.grow(upper, mr);
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}
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/* Mesh */
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Mesh::Mesh()
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{
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need_update = true;
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need_update_rebuild = false;
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transform_applied = false;
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transform_negative_scaled = false;
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transform_normal = transform_identity();
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displacement_method = DISPLACE_BUMP;
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bounds = BoundBox::empty;
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motion_steps = 3;
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use_motion_blur = false;
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bvh = NULL;
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tri_offset = 0;
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vert_offset = 0;
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curve_offset = 0;
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curvekey_offset = 0;
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attributes.triangle_mesh = this;
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curve_attributes.curve_mesh = this;
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has_volume = false;
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}
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Mesh::~Mesh()
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{
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delete bvh;
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}
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void Mesh::reserve(int numverts, int numtris, int numcurves, int numcurvekeys)
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{
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/* reserve space to add verts and triangles later */
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verts.resize(numverts);
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triangles.resize(numtris);
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shader.resize(numtris);
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smooth.resize(numtris);
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curve_keys.resize(numcurvekeys);
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curves.resize(numcurves);
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attributes.reserve();
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curve_attributes.reserve();
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}
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void Mesh::clear()
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{
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/* clear all verts and triangles */
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verts.clear();
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triangles.clear();
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shader.clear();
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smooth.clear();
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curve_keys.clear();
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curves.clear();
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attributes.clear();
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curve_attributes.clear();
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used_shaders.clear();
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transform_applied = false;
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transform_negative_scaled = false;
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transform_normal = transform_identity();
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geometry_flags = GEOMETRY_NONE;
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}
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int Mesh::split_vertex(int vertex)
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{
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/* copy vertex location and vertex attributes */
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verts.push_back(verts[vertex]);
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foreach(Attribute& attr, attributes.attributes) {
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if(attr.element == ATTR_ELEMENT_VERTEX) {
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vector<char> tmp(attr.data_sizeof());
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memcpy(&tmp[0], attr.data() + tmp.size()*vertex, tmp.size());
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attr.add(&tmp[0]);
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}
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}
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return verts.size() - 1;
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}
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void Mesh::set_triangle(int i, int v0, int v1, int v2, int shader_, bool smooth_)
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{
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Triangle tri;
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tri.v[0] = v0;
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tri.v[1] = v1;
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tri.v[2] = v2;
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triangles[i] = tri;
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shader[i] = shader_;
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smooth[i] = smooth_;
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}
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void Mesh::add_triangle(int v0, int v1, int v2, int shader_, bool smooth_)
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{
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Triangle tri;
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tri.v[0] = v0;
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tri.v[1] = v1;
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tri.v[2] = v2;
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triangles.push_back(tri);
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shader.push_back(shader_);
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smooth.push_back(smooth_);
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}
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void Mesh::add_curve_key(float3 co, float radius)
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{
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float4 key = float3_to_float4(co);
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key.w = radius;
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curve_keys.push_back(key);
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}
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void Mesh::add_curve(int first_key, int num_keys, int shader)
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{
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Curve curve;
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curve.first_key = first_key;
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curve.num_keys = num_keys;
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curve.shader = shader;
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curves.push_back(curve);
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}
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void Mesh::compute_bounds()
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{
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BoundBox bnds = BoundBox::empty;
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size_t verts_size = verts.size();
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size_t curve_keys_size = curve_keys.size();
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if(verts_size + curve_keys_size > 0) {
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for(size_t i = 0; i < verts_size; i++)
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bnds.grow(verts[i]);
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for(size_t i = 0; i < curve_keys_size; i++)
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bnds.grow(float4_to_float3(curve_keys[i]), curve_keys[i].w);
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Attribute *attr = attributes.find(ATTR_STD_MOTION_VERTEX_POSITION);
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if(use_motion_blur && attr) {
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size_t steps_size = verts.size() * (motion_steps - 1);
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float3 *vert_steps = attr->data_float3();
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for(size_t i = 0; i < steps_size; i++)
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bnds.grow(vert_steps[i]);
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}
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Attribute *curve_attr = curve_attributes.find(ATTR_STD_MOTION_VERTEX_POSITION);
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if(use_motion_blur && curve_attr) {
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size_t steps_size = curve_keys.size() * (motion_steps - 1);
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float3 *key_steps = curve_attr->data_float3();
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for(size_t i = 0; i < steps_size; i++)
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bnds.grow(key_steps[i]);
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}
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if(!bnds.valid()) {
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bnds = BoundBox::empty;
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/* skip nan or inf coordinates */
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for(size_t i = 0; i < verts_size; i++)
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bnds.grow_safe(verts[i]);
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for(size_t i = 0; i < curve_keys_size; i++)
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bnds.grow_safe(float4_to_float3(curve_keys[i]), curve_keys[i].w);
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if(use_motion_blur && attr) {
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size_t steps_size = verts.size() * (motion_steps - 1);
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float3 *vert_steps = attr->data_float3();
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for(size_t i = 0; i < steps_size; i++)
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bnds.grow_safe(vert_steps[i]);
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}
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if(use_motion_blur && curve_attr) {
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size_t steps_size = curve_keys.size() * (motion_steps - 1);
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float3 *key_steps = curve_attr->data_float3();
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for(size_t i = 0; i < steps_size; i++)
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bnds.grow_safe(key_steps[i]);
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}
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}
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}
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if(!bnds.valid()) {
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/* empty mesh */
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bnds.grow(make_float3(0.0f, 0.0f, 0.0f));
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}
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bounds = bnds;
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}
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static float3 compute_face_normal(const Mesh::Triangle& t, float3 *verts)
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{
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float3 v0 = verts[t.v[0]];
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float3 v1 = verts[t.v[1]];
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float3 v2 = verts[t.v[2]];
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float3 norm = cross(v1 - v0, v2 - v0);
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float normlen = len(norm);
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if(normlen == 0.0f)
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return make_float3(0.0f, 0.0f, 0.0f);
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return norm / normlen;
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}
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void Mesh::add_face_normals()
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{
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/* don't compute if already there */
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if(attributes.find(ATTR_STD_FACE_NORMAL))
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return;
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/* get attributes */
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Attribute *attr_fN = attributes.add(ATTR_STD_FACE_NORMAL);
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float3 *fN = attr_fN->data_float3();
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/* compute face normals */
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size_t triangles_size = triangles.size();
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bool flip = transform_negative_scaled;
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if(triangles_size) {
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float3 *verts_ptr = &verts[0];
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Triangle *triangles_ptr = &triangles[0];
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for(size_t i = 0; i < triangles_size; i++) {
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fN[i] = compute_face_normal(triangles_ptr[i], verts_ptr);
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if(flip)
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fN[i] = -fN[i];
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}
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}
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/* expected to be in local space */
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if(transform_applied) {
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Transform ntfm = transform_inverse(transform_normal);
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for(size_t i = 0; i < triangles_size; i++)
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fN[i] = normalize(transform_direction(&ntfm, fN[i]));
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}
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}
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void Mesh::add_vertex_normals()
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{
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bool flip = transform_negative_scaled;
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size_t verts_size = verts.size();
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size_t triangles_size = triangles.size();
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/* static vertex normals */
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if(!attributes.find(ATTR_STD_VERTEX_NORMAL)) {
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/* get attributes */
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Attribute *attr_fN = attributes.find(ATTR_STD_FACE_NORMAL);
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Attribute *attr_vN = attributes.add(ATTR_STD_VERTEX_NORMAL);
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float3 *fN = attr_fN->data_float3();
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float3 *vN = attr_vN->data_float3();
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/* compute vertex normals */
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memset(vN, 0, verts.size()*sizeof(float3));
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if(triangles_size) {
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Triangle *triangles_ptr = &triangles[0];
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for(size_t i = 0; i < triangles_size; i++)
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for(size_t j = 0; j < 3; j++)
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vN[triangles_ptr[i].v[j]] += fN[i];
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}
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for(size_t i = 0; i < verts_size; i++) {
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vN[i] = normalize(vN[i]);
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if(flip)
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vN[i] = -vN[i];
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}
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}
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/* motion vertex normals */
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Attribute *attr_mP = attributes.find(ATTR_STD_MOTION_VERTEX_POSITION);
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Attribute *attr_mN = attributes.find(ATTR_STD_MOTION_VERTEX_NORMAL);
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if(has_motion_blur() && attr_mP && !attr_mN) {
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/* create attribute */
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attr_mN = attributes.add(ATTR_STD_MOTION_VERTEX_NORMAL);
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for(int step = 0; step < motion_steps - 1; step++) {
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float3 *mP = attr_mP->data_float3() + step*verts.size();
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float3 *mN = attr_mN->data_float3() + step*verts.size();
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/* compute */
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memset(mN, 0, verts.size()*sizeof(float3));
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if(triangles_size) {
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Triangle *triangles_ptr = &triangles[0];
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for(size_t i = 0; i < triangles_size; i++) {
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for(size_t j = 0; j < 3; j++) {
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float3 fN = compute_face_normal(triangles_ptr[i], mP);
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mN[triangles_ptr[i].v[j]] += fN;
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}
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}
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}
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for(size_t i = 0; i < verts_size; i++) {
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mN[i] = normalize(mN[i]);
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if(flip)
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mN[i] = -mN[i];
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}
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}
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}
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}
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void Mesh::pack_normals(Scene *scene, uint *tri_shader, float4 *vnormal)
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{
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Attribute *attr_vN = attributes.find(ATTR_STD_VERTEX_NORMAL);
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float3 *vN = attr_vN->data_float3();
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uint shader_id = 0;
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uint last_shader = -1;
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bool last_smooth = false;
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size_t triangles_size = triangles.size();
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uint *shader_ptr = (shader.size())? &shader[0]: NULL;
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bool do_transform = transform_applied;
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Transform ntfm = transform_normal;
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/* save shader */
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for(size_t i = 0; i < triangles_size; i++) {
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if(shader_ptr[i] != last_shader || last_smooth != smooth[i]) {
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last_shader = shader_ptr[i];
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last_smooth = smooth[i];
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shader_id = scene->shader_manager->get_shader_id(last_shader, this, last_smooth);
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}
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tri_shader[i] = shader_id;
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}
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size_t verts_size = verts.size();
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for(size_t i = 0; i < verts_size; i++) {
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float3 vNi = vN[i];
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if(do_transform)
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vNi = normalize(transform_direction(&ntfm, vNi));
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vnormal[i] = make_float4(vNi.x, vNi.y, vNi.z, 0.0f);
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}
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}
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void Mesh::pack_verts(float4 *tri_verts, float4 *tri_vindex, size_t vert_offset)
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{
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size_t verts_size = verts.size();
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if(verts_size) {
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float3 *verts_ptr = &verts[0];
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for(size_t i = 0; i < verts_size; i++) {
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float3 p = verts_ptr[i];
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tri_verts[i] = make_float4(p.x, p.y, p.z, 0.0f);
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}
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}
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size_t triangles_size = triangles.size();
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if(triangles_size) {
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Triangle *triangles_ptr = &triangles[0];
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for(size_t i = 0; i < triangles_size; i++) {
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Triangle t = triangles_ptr[i];
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tri_vindex[i] = make_float4(
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__int_as_float(t.v[0] + vert_offset),
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__int_as_float(t.v[1] + vert_offset),
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__int_as_float(t.v[2] + vert_offset),
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0);
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}
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}
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}
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void Mesh::pack_curves(Scene *scene, float4 *curve_key_co, float4 *curve_data, size_t curvekey_offset)
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{
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size_t curve_keys_size = curve_keys.size();
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float4 *keys_ptr = NULL;
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/* pack curve keys */
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if(curve_keys_size) {
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keys_ptr = &curve_keys[0];
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for(size_t i = 0; i < curve_keys_size; i++)
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curve_key_co[i] = keys_ptr[i];
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}
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/* pack curve segments */
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size_t curve_num = curves.size();
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if(curve_num) {
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Curve *curve_ptr = &curves[0];
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int shader_id = 0;
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for(size_t i = 0; i < curve_num; i++) {
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Curve curve = curve_ptr[i];
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shader_id = scene->shader_manager->get_shader_id(curve.shader, this, false);
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curve_data[i] = make_float4(
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__int_as_float(curve.first_key + curvekey_offset),
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__int_as_float(curve.num_keys),
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__int_as_float(shader_id),
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0.0f);
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}
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}
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}
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void Mesh::compute_bvh(SceneParams *params, Progress *progress, int n, int total)
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{
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if(progress->get_cancel())
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return;
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compute_bounds();
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if(!transform_applied) {
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string msg = "Updating Mesh BVH ";
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if(name == "")
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msg += string_printf("%u/%u", (uint)(n+1), (uint)total);
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else
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msg += string_printf("%s %u/%u", name.c_str(), (uint)(n+1), (uint)total);
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Object object;
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object.mesh = this;
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vector<Object*> objects;
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objects.push_back(&object);
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if(bvh && !need_update_rebuild) {
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progress->set_status(msg, "Refitting BVH");
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bvh->objects = objects;
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bvh->refit(*progress);
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}
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else {
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progress->set_status(msg, "Building BVH");
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BVHParams bparams;
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bparams.use_cache = params->use_bvh_cache;
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bparams.use_spatial_split = params->use_bvh_spatial_split;
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bparams.use_qbvh = params->use_qbvh;
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delete bvh;
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bvh = BVH::create(bparams, objects);
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bvh->build(*progress);
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}
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}
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need_update = false;
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need_update_rebuild = false;
|
|
}
|
|
|
|
void Mesh::tag_update(Scene *scene, bool rebuild)
|
|
{
|
|
need_update = true;
|
|
|
|
if(rebuild) {
|
|
need_update_rebuild = true;
|
|
scene->light_manager->need_update = true;
|
|
}
|
|
else {
|
|
foreach(uint sindex, used_shaders)
|
|
if(scene->shaders[sindex]->has_surface_emission)
|
|
scene->light_manager->need_update = true;
|
|
}
|
|
|
|
scene->mesh_manager->need_update = true;
|
|
scene->object_manager->need_update = true;
|
|
}
|
|
|
|
bool Mesh::has_motion_blur() const
|
|
{
|
|
return (use_motion_blur &&
|
|
(attributes.find(ATTR_STD_MOTION_VERTEX_POSITION) ||
|
|
curve_attributes.find(ATTR_STD_MOTION_VERTEX_POSITION)));
|
|
}
|
|
|
|
/* Mesh Manager */
|
|
|
|
MeshManager::MeshManager()
|
|
{
|
|
bvh = NULL;
|
|
need_update = true;
|
|
need_flags_update = true;
|
|
}
|
|
|
|
MeshManager::~MeshManager()
|
|
{
|
|
delete bvh;
|
|
}
|
|
|
|
void MeshManager::update_osl_attributes(Device *device, Scene *scene, vector<AttributeRequestSet>& mesh_attributes)
|
|
{
|
|
#ifdef WITH_OSL
|
|
/* for OSL, a hash map is used to lookup the attribute by name. */
|
|
OSLGlobals *og = (OSLGlobals*)device->osl_memory();
|
|
|
|
og->object_name_map.clear();
|
|
og->attribute_map.clear();
|
|
og->object_names.clear();
|
|
|
|
og->attribute_map.resize(scene->objects.size()*ATTR_PRIM_TYPES);
|
|
|
|
for(size_t i = 0; i < scene->objects.size(); i++) {
|
|
/* set object name to object index map */
|
|
Object *object = scene->objects[i];
|
|
og->object_name_map[object->name] = i;
|
|
og->object_names.push_back(object->name);
|
|
|
|
/* set object attributes */
|
|
foreach(ParamValue& attr, object->attributes) {
|
|
OSLGlobals::Attribute osl_attr;
|
|
|
|
osl_attr.type = attr.type();
|
|
osl_attr.elem = ATTR_ELEMENT_OBJECT;
|
|
osl_attr.value = attr;
|
|
osl_attr.offset = 0;
|
|
|
|
og->attribute_map[i*ATTR_PRIM_TYPES][attr.name()] = osl_attr;
|
|
og->attribute_map[i*ATTR_PRIM_TYPES + ATTR_PRIM_CURVE][attr.name()] = osl_attr;
|
|
}
|
|
|
|
/* find mesh attributes */
|
|
size_t j;
|
|
|
|
for(j = 0; j < scene->meshes.size(); j++)
|
|
if(scene->meshes[j] == object->mesh)
|
|
break;
|
|
|
|
AttributeRequestSet& attributes = mesh_attributes[j];
|
|
|
|
/* set object attributes */
|
|
foreach(AttributeRequest& req, attributes.requests) {
|
|
OSLGlobals::Attribute osl_attr;
|
|
|
|
if(req.triangle_element != ATTR_ELEMENT_NONE) {
|
|
osl_attr.elem = req.triangle_element;
|
|
osl_attr.offset = req.triangle_offset;
|
|
|
|
if(req.triangle_type == TypeDesc::TypeFloat)
|
|
osl_attr.type = TypeDesc::TypeFloat;
|
|
else if(req.triangle_type == TypeDesc::TypeMatrix)
|
|
osl_attr.type = TypeDesc::TypeMatrix;
|
|
else
|
|
osl_attr.type = TypeDesc::TypeColor;
|
|
|
|
if(req.std != ATTR_STD_NONE) {
|
|
/* if standard attribute, add lookup by geom: name convention */
|
|
ustring stdname(string("geom:") + string(Attribute::standard_name(req.std)));
|
|
og->attribute_map[i*ATTR_PRIM_TYPES][stdname] = osl_attr;
|
|
}
|
|
else if(req.name != ustring()) {
|
|
/* add lookup by mesh attribute name */
|
|
og->attribute_map[i*ATTR_PRIM_TYPES][req.name] = osl_attr;
|
|
}
|
|
}
|
|
|
|
if(req.curve_element != ATTR_ELEMENT_NONE) {
|
|
osl_attr.elem = req.curve_element;
|
|
osl_attr.offset = req.curve_offset;
|
|
|
|
if(req.curve_type == TypeDesc::TypeFloat)
|
|
osl_attr.type = TypeDesc::TypeFloat;
|
|
else if(req.curve_type == TypeDesc::TypeMatrix)
|
|
osl_attr.type = TypeDesc::TypeMatrix;
|
|
else
|
|
osl_attr.type = TypeDesc::TypeColor;
|
|
|
|
if(req.std != ATTR_STD_NONE) {
|
|
/* if standard attribute, add lookup by geom: name convention */
|
|
ustring stdname(string("geom:") + string(Attribute::standard_name(req.std)));
|
|
og->attribute_map[i*ATTR_PRIM_TYPES + ATTR_PRIM_CURVE][stdname] = osl_attr;
|
|
}
|
|
else if(req.name != ustring()) {
|
|
/* add lookup by mesh attribute name */
|
|
og->attribute_map[i*ATTR_PRIM_TYPES + ATTR_PRIM_CURVE][req.name] = osl_attr;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
(void)device;
|
|
(void)scene;
|
|
(void)mesh_attributes;
|
|
#endif
|
|
}
|
|
|
|
void MeshManager::update_svm_attributes(Device *device, DeviceScene *dscene, Scene *scene, vector<AttributeRequestSet>& mesh_attributes)
|
|
{
|
|
/* for SVM, the attributes_map table is used to lookup the offset of an
|
|
* attribute, based on a unique shader attribute id. */
|
|
|
|
/* compute array stride */
|
|
int attr_map_stride = 0;
|
|
|
|
for(size_t i = 0; i < scene->meshes.size(); i++)
|
|
attr_map_stride = max(attr_map_stride, (mesh_attributes[i].size() + 1)*ATTR_PRIM_TYPES);
|
|
|
|
if(attr_map_stride == 0)
|
|
return;
|
|
|
|
/* create attribute map */
|
|
uint4 *attr_map = dscene->attributes_map.resize(attr_map_stride*scene->objects.size());
|
|
memset(attr_map, 0, dscene->attributes_map.size()*sizeof(uint));
|
|
|
|
for(size_t i = 0; i < scene->objects.size(); i++) {
|
|
Object *object = scene->objects[i];
|
|
Mesh *mesh = object->mesh;
|
|
|
|
/* find mesh attributes */
|
|
size_t j;
|
|
|
|
for(j = 0; j < scene->meshes.size(); j++)
|
|
if(scene->meshes[j] == mesh)
|
|
break;
|
|
|
|
AttributeRequestSet& attributes = mesh_attributes[j];
|
|
|
|
/* set object attributes */
|
|
int index = i*attr_map_stride;
|
|
|
|
foreach(AttributeRequest& req, attributes.requests) {
|
|
uint id;
|
|
|
|
if(req.std == ATTR_STD_NONE)
|
|
id = scene->shader_manager->get_attribute_id(req.name);
|
|
else
|
|
id = scene->shader_manager->get_attribute_id(req.std);
|
|
|
|
if(mesh->triangles.size()) {
|
|
attr_map[index].x = id;
|
|
attr_map[index].y = req.triangle_element;
|
|
attr_map[index].z = as_uint(req.triangle_offset);
|
|
|
|
if(req.triangle_type == TypeDesc::TypeFloat)
|
|
attr_map[index].w = NODE_ATTR_FLOAT;
|
|
else if(req.triangle_type == TypeDesc::TypeMatrix)
|
|
attr_map[index].w = NODE_ATTR_MATRIX;
|
|
else
|
|
attr_map[index].w = NODE_ATTR_FLOAT3;
|
|
}
|
|
|
|
index++;
|
|
|
|
if(mesh->curves.size()) {
|
|
attr_map[index].x = id;
|
|
attr_map[index].y = req.curve_element;
|
|
attr_map[index].z = as_uint(req.curve_offset);
|
|
|
|
if(req.curve_type == TypeDesc::TypeFloat)
|
|
attr_map[index].w = NODE_ATTR_FLOAT;
|
|
else if(req.curve_type == TypeDesc::TypeMatrix)
|
|
attr_map[index].w = NODE_ATTR_MATRIX;
|
|
else
|
|
attr_map[index].w = NODE_ATTR_FLOAT3;
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
/* terminator */
|
|
attr_map[index].x = ATTR_STD_NONE;
|
|
attr_map[index].y = 0;
|
|
attr_map[index].z = 0;
|
|
attr_map[index].w = 0;
|
|
|
|
index++;
|
|
|
|
attr_map[index].x = ATTR_STD_NONE;
|
|
attr_map[index].y = 0;
|
|
attr_map[index].z = 0;
|
|
attr_map[index].w = 0;
|
|
|
|
index++;
|
|
}
|
|
|
|
/* copy to device */
|
|
dscene->data.bvh.attributes_map_stride = attr_map_stride;
|
|
device->tex_alloc("__attributes_map", dscene->attributes_map);
|
|
}
|
|
|
|
static void update_attribute_element_size(Mesh *mesh,
|
|
Attribute *mattr,
|
|
size_t *attr_float_size,
|
|
size_t *attr_float3_size,
|
|
size_t *attr_uchar4_size)
|
|
{
|
|
if(mattr) {
|
|
size_t size = mattr->element_size(
|
|
mesh->verts.size(),
|
|
mesh->triangles.size(),
|
|
mesh->motion_steps,
|
|
mesh->curves.size(),
|
|
mesh->curve_keys.size());
|
|
|
|
if(mattr->element == ATTR_ELEMENT_VOXEL) {
|
|
/* pass */
|
|
}
|
|
else if(mattr->element == ATTR_ELEMENT_CORNER_BYTE) {
|
|
*attr_uchar4_size += size;
|
|
}
|
|
else if(mattr->type == TypeDesc::TypeFloat) {
|
|
*attr_float_size += size;
|
|
}
|
|
else if(mattr->type == TypeDesc::TypeMatrix) {
|
|
*attr_float3_size += size * 4;
|
|
}
|
|
else {
|
|
*attr_float3_size += size;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void update_attribute_element_offset(Mesh *mesh,
|
|
vector<float>& attr_float,
|
|
size_t& attr_float_offset,
|
|
vector<float4>& attr_float3,
|
|
size_t& attr_float3_offset,
|
|
vector<uchar4>& attr_uchar4,
|
|
size_t& attr_uchar4_offset,
|
|
Attribute *mattr,
|
|
TypeDesc& type,
|
|
int& offset,
|
|
AttributeElement& element)
|
|
{
|
|
if(mattr) {
|
|
/* store element and type */
|
|
element = mattr->element;
|
|
type = mattr->type;
|
|
|
|
/* store attribute data in arrays */
|
|
size_t size = mattr->element_size(
|
|
mesh->verts.size(),
|
|
mesh->triangles.size(),
|
|
mesh->motion_steps,
|
|
mesh->curves.size(),
|
|
mesh->curve_keys.size());
|
|
|
|
if(mattr->element == ATTR_ELEMENT_VOXEL) {
|
|
/* store slot in offset value */
|
|
VoxelAttribute *voxel_data = mattr->data_voxel();
|
|
offset = voxel_data->slot;
|
|
}
|
|
else if(mattr->element == ATTR_ELEMENT_CORNER_BYTE) {
|
|
uchar4 *data = mattr->data_uchar4();
|
|
offset = attr_uchar4_offset;
|
|
|
|
assert(attr_uchar4.capacity() >= offset + size);
|
|
for(size_t k = 0; k < size; k++) {
|
|
attr_uchar4[offset+k] = data[k];
|
|
}
|
|
attr_uchar4_offset += size;
|
|
}
|
|
else if(mattr->type == TypeDesc::TypeFloat) {
|
|
float *data = mattr->data_float();
|
|
offset = attr_float_offset;
|
|
|
|
assert(attr_float.capacity() >= offset + size);
|
|
for(size_t k = 0; k < size; k++) {
|
|
attr_float[offset+k] = data[k];
|
|
}
|
|
attr_float_offset += size;
|
|
}
|
|
else if(mattr->type == TypeDesc::TypeMatrix) {
|
|
Transform *tfm = mattr->data_transform();
|
|
offset = attr_float3_offset;
|
|
|
|
assert(attr_float3.capacity() >= offset + size * 4);
|
|
for(size_t k = 0; k < size*4; k++) {
|
|
attr_float3[offset+k] = (&tfm->x)[k];
|
|
}
|
|
attr_float3_offset += size * 4;
|
|
}
|
|
else {
|
|
float4 *data = mattr->data_float4();
|
|
offset = attr_float3_offset;
|
|
|
|
assert(attr_float3.capacity() >= offset + size);
|
|
for(size_t k = 0; k < size; k++) {
|
|
attr_float3[offset+k] = data[k];
|
|
}
|
|
attr_float3_offset += size;
|
|
}
|
|
|
|
/* mesh vertex/curve index is global, not per object, so we sneak
|
|
* a correction for that in here */
|
|
if(element == ATTR_ELEMENT_VERTEX)
|
|
offset -= mesh->vert_offset;
|
|
else if(element == ATTR_ELEMENT_VERTEX_MOTION)
|
|
offset -= mesh->vert_offset;
|
|
else if(element == ATTR_ELEMENT_FACE)
|
|
offset -= mesh->tri_offset;
|
|
else if(element == ATTR_ELEMENT_CORNER || element == ATTR_ELEMENT_CORNER_BYTE)
|
|
offset -= 3*mesh->tri_offset;
|
|
else if(element == ATTR_ELEMENT_CURVE)
|
|
offset -= mesh->curve_offset;
|
|
else if(element == ATTR_ELEMENT_CURVE_KEY)
|
|
offset -= mesh->curvekey_offset;
|
|
else if(element == ATTR_ELEMENT_CURVE_KEY_MOTION)
|
|
offset -= mesh->curvekey_offset;
|
|
}
|
|
else {
|
|
/* attribute not found */
|
|
element = ATTR_ELEMENT_NONE;
|
|
offset = 0;
|
|
}
|
|
}
|
|
|
|
void MeshManager::device_update_attributes(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress)
|
|
{
|
|
progress.set_status("Updating Mesh", "Computing attributes");
|
|
|
|
/* gather per mesh requested attributes. as meshes may have multiple
|
|
* shaders assigned, this merges the requested attributes that have
|
|
* been set per shader by the shader manager */
|
|
vector<AttributeRequestSet> mesh_attributes(scene->meshes.size());
|
|
|
|
for(size_t i = 0; i < scene->meshes.size(); i++) {
|
|
Mesh *mesh = scene->meshes[i];
|
|
|
|
scene->need_global_attributes(mesh_attributes[i]);
|
|
|
|
foreach(uint sindex, mesh->used_shaders) {
|
|
Shader *shader = scene->shaders[sindex];
|
|
mesh_attributes[i].add(shader->attributes);
|
|
}
|
|
}
|
|
|
|
/* mesh attribute are stored in a single array per data type. here we fill
|
|
* those arrays, and set the offset and element type to create attribute
|
|
* maps next */
|
|
|
|
/* Pre-allocate attributes to avoid arrays re-allocation which would
|
|
* take 2x of overall attribute memory usage.
|
|
*/
|
|
size_t attr_float_size = 0;
|
|
size_t attr_float3_size = 0;
|
|
size_t attr_uchar4_size = 0;
|
|
for(size_t i = 0; i < scene->meshes.size(); i++) {
|
|
Mesh *mesh = scene->meshes[i];
|
|
AttributeRequestSet& attributes = mesh_attributes[i];
|
|
foreach(AttributeRequest& req, attributes.requests) {
|
|
Attribute *triangle_mattr = mesh->attributes.find(req);
|
|
Attribute *curve_mattr = mesh->curve_attributes.find(req);
|
|
|
|
/* todo: get rid of this exception, it's only here for giving some
|
|
* working texture coordinate for subdivision as we can't preserve
|
|
* any attributes yet */
|
|
if(!triangle_mattr && req.std == ATTR_STD_GENERATED) {
|
|
triangle_mattr = mesh->attributes.add(ATTR_STD_GENERATED);
|
|
if(mesh->verts.size())
|
|
memcpy(triangle_mattr->data_float3(), &mesh->verts[0], sizeof(float3)*mesh->verts.size());
|
|
}
|
|
|
|
update_attribute_element_size(mesh,
|
|
triangle_mattr,
|
|
&attr_float_size,
|
|
&attr_float3_size,
|
|
&attr_uchar4_size);
|
|
update_attribute_element_size(mesh,
|
|
curve_mattr,
|
|
&attr_float_size,
|
|
&attr_float3_size,
|
|
&attr_uchar4_size);
|
|
}
|
|
}
|
|
|
|
vector<float> attr_float(attr_float_size);
|
|
vector<float4> attr_float3(attr_float3_size);
|
|
vector<uchar4> attr_uchar4(attr_uchar4_size);
|
|
|
|
size_t attr_float_offset = 0;
|
|
size_t attr_float3_offset = 0;
|
|
size_t attr_uchar4_offset = 0;
|
|
|
|
/* Fill in attributes. */
|
|
for(size_t i = 0; i < scene->meshes.size(); i++) {
|
|
Mesh *mesh = scene->meshes[i];
|
|
AttributeRequestSet& attributes = mesh_attributes[i];
|
|
|
|
/* todo: we now store std and name attributes from requests even if
|
|
* they actually refer to the same mesh attributes, optimize */
|
|
foreach(AttributeRequest& req, attributes.requests) {
|
|
Attribute *triangle_mattr = mesh->attributes.find(req);
|
|
Attribute *curve_mattr = mesh->curve_attributes.find(req);
|
|
|
|
update_attribute_element_offset(mesh,
|
|
attr_float, attr_float_offset,
|
|
attr_float3, attr_float3_offset,
|
|
attr_uchar4, attr_uchar4_offset,
|
|
triangle_mattr,
|
|
req.triangle_type,
|
|
req.triangle_offset,
|
|
req.triangle_element);
|
|
|
|
update_attribute_element_offset(mesh,
|
|
attr_float, attr_float_offset,
|
|
attr_float3, attr_float3_offset,
|
|
attr_uchar4, attr_uchar4_offset,
|
|
curve_mattr,
|
|
req.curve_type,
|
|
req.curve_offset,
|
|
req.curve_element);
|
|
|
|
if(progress.get_cancel()) return;
|
|
}
|
|
}
|
|
|
|
/* create attribute lookup maps */
|
|
if(scene->shader_manager->use_osl())
|
|
update_osl_attributes(device, scene, mesh_attributes);
|
|
|
|
update_svm_attributes(device, dscene, scene, mesh_attributes);
|
|
|
|
if(progress.get_cancel()) return;
|
|
|
|
/* copy to device */
|
|
progress.set_status("Updating Mesh", "Copying Attributes to device");
|
|
|
|
if(attr_float.size()) {
|
|
dscene->attributes_float.copy(&attr_float[0], attr_float.size());
|
|
device->tex_alloc("__attributes_float", dscene->attributes_float);
|
|
}
|
|
if(attr_float3.size()) {
|
|
dscene->attributes_float3.copy(&attr_float3[0], attr_float3.size());
|
|
device->tex_alloc("__attributes_float3", dscene->attributes_float3);
|
|
}
|
|
if(attr_uchar4.size()) {
|
|
dscene->attributes_uchar4.copy(&attr_uchar4[0], attr_uchar4.size());
|
|
device->tex_alloc("__attributes_uchar4", dscene->attributes_uchar4);
|
|
}
|
|
}
|
|
|
|
void MeshManager::device_update_mesh(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress)
|
|
{
|
|
/* count and update offsets */
|
|
size_t vert_size = 0;
|
|
size_t tri_size = 0;
|
|
|
|
size_t curve_key_size = 0;
|
|
size_t curve_size = 0;
|
|
|
|
foreach(Mesh *mesh, scene->meshes) {
|
|
mesh->vert_offset = vert_size;
|
|
mesh->tri_offset = tri_size;
|
|
|
|
mesh->curvekey_offset = curve_key_size;
|
|
mesh->curve_offset = curve_size;
|
|
|
|
vert_size += mesh->verts.size();
|
|
tri_size += mesh->triangles.size();
|
|
|
|
curve_key_size += mesh->curve_keys.size();
|
|
curve_size += mesh->curves.size();
|
|
}
|
|
|
|
if(tri_size != 0) {
|
|
/* normals */
|
|
progress.set_status("Updating Mesh", "Computing normals");
|
|
|
|
uint *tri_shader = dscene->tri_shader.resize(tri_size);
|
|
float4 *vnormal = dscene->tri_vnormal.resize(vert_size);
|
|
float4 *tri_verts = dscene->tri_verts.resize(vert_size);
|
|
float4 *tri_vindex = dscene->tri_vindex.resize(tri_size);
|
|
|
|
foreach(Mesh *mesh, scene->meshes) {
|
|
mesh->pack_normals(scene, &tri_shader[mesh->tri_offset], &vnormal[mesh->vert_offset]);
|
|
mesh->pack_verts(&tri_verts[mesh->vert_offset], &tri_vindex[mesh->tri_offset], mesh->vert_offset);
|
|
|
|
if(progress.get_cancel()) return;
|
|
}
|
|
|
|
/* vertex coordinates */
|
|
progress.set_status("Updating Mesh", "Copying Mesh to device");
|
|
|
|
device->tex_alloc("__tri_shader", dscene->tri_shader);
|
|
device->tex_alloc("__tri_vnormal", dscene->tri_vnormal);
|
|
device->tex_alloc("__tri_verts", dscene->tri_verts);
|
|
device->tex_alloc("__tri_vindex", dscene->tri_vindex);
|
|
}
|
|
|
|
if(curve_size != 0) {
|
|
progress.set_status("Updating Mesh", "Copying Strands to device");
|
|
|
|
float4 *curve_keys = dscene->curve_keys.resize(curve_key_size);
|
|
float4 *curves = dscene->curves.resize(curve_size);
|
|
|
|
foreach(Mesh *mesh, scene->meshes) {
|
|
mesh->pack_curves(scene, &curve_keys[mesh->curvekey_offset], &curves[mesh->curve_offset], mesh->curvekey_offset);
|
|
if(progress.get_cancel()) return;
|
|
}
|
|
|
|
device->tex_alloc("__curve_keys", dscene->curve_keys);
|
|
device->tex_alloc("__curves", dscene->curves);
|
|
}
|
|
}
|
|
|
|
void MeshManager::device_update_bvh(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress)
|
|
{
|
|
/* bvh build */
|
|
progress.set_status("Updating Scene BVH", "Building");
|
|
|
|
VLOG(1) << (scene->params.use_qbvh ? "Using QBVH optimization structure"
|
|
: "Using regular BVH optimization structure");
|
|
|
|
BVHParams bparams;
|
|
bparams.top_level = true;
|
|
bparams.use_qbvh = scene->params.use_qbvh;
|
|
bparams.use_spatial_split = scene->params.use_bvh_spatial_split;
|
|
bparams.use_cache = scene->params.use_bvh_cache;
|
|
|
|
delete bvh;
|
|
bvh = BVH::create(bparams, scene->objects);
|
|
bvh->build(progress);
|
|
|
|
if(progress.get_cancel()) return;
|
|
|
|
/* copy to device */
|
|
progress.set_status("Updating Scene BVH", "Copying BVH to device");
|
|
|
|
PackedBVH& pack = bvh->pack;
|
|
|
|
if(pack.nodes.size()) {
|
|
dscene->bvh_nodes.reference((float4*)&pack.nodes[0], pack.nodes.size());
|
|
device->tex_alloc("__bvh_nodes", dscene->bvh_nodes);
|
|
}
|
|
if(pack.object_node.size()) {
|
|
dscene->object_node.reference((uint*)&pack.object_node[0], pack.object_node.size());
|
|
device->tex_alloc("__object_node", dscene->object_node);
|
|
}
|
|
if(pack.tri_woop.size()) {
|
|
dscene->tri_woop.reference(&pack.tri_woop[0], pack.tri_woop.size());
|
|
device->tex_alloc("__tri_woop", dscene->tri_woop);
|
|
}
|
|
if(pack.prim_type.size()) {
|
|
dscene->prim_type.reference((uint*)&pack.prim_type[0], pack.prim_type.size());
|
|
device->tex_alloc("__prim_type", dscene->prim_type);
|
|
}
|
|
if(pack.prim_visibility.size()) {
|
|
dscene->prim_visibility.reference((uint*)&pack.prim_visibility[0], pack.prim_visibility.size());
|
|
device->tex_alloc("__prim_visibility", dscene->prim_visibility);
|
|
}
|
|
if(pack.prim_index.size()) {
|
|
dscene->prim_index.reference((uint*)&pack.prim_index[0], pack.prim_index.size());
|
|
device->tex_alloc("__prim_index", dscene->prim_index);
|
|
}
|
|
if(pack.prim_object.size()) {
|
|
dscene->prim_object.reference((uint*)&pack.prim_object[0], pack.prim_object.size());
|
|
device->tex_alloc("__prim_object", dscene->prim_object);
|
|
}
|
|
|
|
dscene->data.bvh.root = pack.root_index;
|
|
dscene->data.bvh.use_qbvh = scene->params.use_qbvh;
|
|
}
|
|
|
|
void MeshManager::device_update_flags(Device * /*device*/,
|
|
DeviceScene * /*dscene*/,
|
|
Scene * scene,
|
|
Progress& /*progress*/)
|
|
{
|
|
if(!need_update && !need_flags_update) {
|
|
return;
|
|
}
|
|
/* update flags */
|
|
foreach(Mesh *mesh, scene->meshes) {
|
|
mesh->has_volume = false;
|
|
foreach(uint shader, mesh->used_shaders) {
|
|
if(scene->shaders[shader]->has_volume) {
|
|
mesh->has_volume = true;
|
|
}
|
|
}
|
|
}
|
|
need_flags_update = false;
|
|
}
|
|
|
|
void MeshManager::device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress)
|
|
{
|
|
if(!need_update)
|
|
return;
|
|
|
|
/* update normals */
|
|
foreach(Mesh *mesh, scene->meshes) {
|
|
foreach(uint shader, mesh->used_shaders) {
|
|
if(scene->shaders[shader]->need_update_attributes)
|
|
mesh->need_update = true;
|
|
}
|
|
|
|
if(mesh->need_update) {
|
|
mesh->add_face_normals();
|
|
mesh->add_vertex_normals();
|
|
|
|
if(progress.get_cancel()) return;
|
|
}
|
|
}
|
|
|
|
/* device update */
|
|
device_free(device, dscene);
|
|
|
|
device_update_mesh(device, dscene, scene, progress);
|
|
if(progress.get_cancel()) return;
|
|
|
|
device_update_attributes(device, dscene, scene, progress);
|
|
if(progress.get_cancel()) return;
|
|
|
|
/* update displacement */
|
|
bool displacement_done = false;
|
|
|
|
foreach(Mesh *mesh, scene->meshes)
|
|
if(mesh->need_update && displace(device, dscene, scene, mesh, progress))
|
|
displacement_done = true;
|
|
|
|
/* todo: properly handle cancel halfway displacement */
|
|
if(progress.get_cancel()) return;
|
|
|
|
/* device re-update after displacement */
|
|
if(displacement_done) {
|
|
device_free(device, dscene);
|
|
|
|
device_update_mesh(device, dscene, scene, progress);
|
|
if(progress.get_cancel()) return;
|
|
|
|
device_update_attributes(device, dscene, scene, progress);
|
|
if(progress.get_cancel()) return;
|
|
}
|
|
|
|
/* update bvh */
|
|
size_t i = 0, num_bvh = 0;
|
|
|
|
foreach(Mesh *mesh, scene->meshes)
|
|
if(mesh->need_update && !mesh->transform_applied)
|
|
num_bvh++;
|
|
|
|
TaskPool pool;
|
|
|
|
foreach(Mesh *mesh, scene->meshes) {
|
|
if(mesh->need_update) {
|
|
pool.push(function_bind(&Mesh::compute_bvh,
|
|
mesh,
|
|
&scene->params,
|
|
&progress,
|
|
i,
|
|
num_bvh));
|
|
if(!mesh->transform_applied) {
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
pool.wait_work();
|
|
foreach(Shader *shader, scene->shaders)
|
|
shader->need_update_attributes = false;
|
|
|
|
#ifdef __OBJECT_MOTION__
|
|
Scene::MotionType need_motion = scene->need_motion(device->info.advanced_shading);
|
|
bool motion_blur = need_motion == Scene::MOTION_BLUR;
|
|
#else
|
|
bool motion_blur = false;
|
|
#endif
|
|
|
|
/* update obejcts */
|
|
vector<Object *> volume_objects;
|
|
foreach(Object *object, scene->objects)
|
|
object->compute_bounds(motion_blur);
|
|
|
|
if(progress.get_cancel()) return;
|
|
|
|
device_update_bvh(device, dscene, scene, progress);
|
|
|
|
need_update = false;
|
|
}
|
|
|
|
void MeshManager::device_free(Device *device, DeviceScene *dscene)
|
|
{
|
|
device->tex_free(dscene->bvh_nodes);
|
|
device->tex_free(dscene->object_node);
|
|
device->tex_free(dscene->tri_woop);
|
|
device->tex_free(dscene->prim_type);
|
|
device->tex_free(dscene->prim_visibility);
|
|
device->tex_free(dscene->prim_index);
|
|
device->tex_free(dscene->prim_object);
|
|
device->tex_free(dscene->tri_shader);
|
|
device->tex_free(dscene->tri_vnormal);
|
|
device->tex_free(dscene->tri_vindex);
|
|
device->tex_free(dscene->tri_verts);
|
|
device->tex_free(dscene->curves);
|
|
device->tex_free(dscene->curve_keys);
|
|
device->tex_free(dscene->attributes_map);
|
|
device->tex_free(dscene->attributes_float);
|
|
device->tex_free(dscene->attributes_float3);
|
|
device->tex_free(dscene->attributes_uchar4);
|
|
|
|
dscene->bvh_nodes.clear();
|
|
dscene->object_node.clear();
|
|
dscene->tri_woop.clear();
|
|
dscene->prim_type.clear();
|
|
dscene->prim_visibility.clear();
|
|
dscene->prim_index.clear();
|
|
dscene->prim_object.clear();
|
|
dscene->tri_shader.clear();
|
|
dscene->tri_vnormal.clear();
|
|
dscene->tri_vindex.clear();
|
|
dscene->tri_verts.clear();
|
|
dscene->curves.clear();
|
|
dscene->curve_keys.clear();
|
|
dscene->attributes_map.clear();
|
|
dscene->attributes_float.clear();
|
|
dscene->attributes_float3.clear();
|
|
dscene->attributes_uchar4.clear();
|
|
|
|
#ifdef WITH_OSL
|
|
OSLGlobals *og = (OSLGlobals*)device->osl_memory();
|
|
|
|
if(og) {
|
|
og->object_name_map.clear();
|
|
og->attribute_map.clear();
|
|
og->object_names.clear();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void MeshManager::tag_update(Scene *scene)
|
|
{
|
|
need_update = true;
|
|
scene->object_manager->need_update = true;
|
|
}
|
|
|
|
bool Mesh::need_attribute(Scene *scene, AttributeStandard std)
|
|
{
|
|
if(std == ATTR_STD_NONE)
|
|
return false;
|
|
|
|
if(scene->need_global_attribute(std))
|
|
return true;
|
|
|
|
foreach(uint shader, used_shaders)
|
|
if(scene->shaders[shader]->attributes.find(std))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
bool Mesh::need_attribute(Scene *scene, ustring name)
|
|
{
|
|
if(name == ustring())
|
|
return false;
|
|
|
|
foreach(uint shader, used_shaders)
|
|
if(scene->shaders[shader]->attributes.find(name))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
CCL_NAMESPACE_END
|
|
|