Clément Foucault
83adc54438
Initial work by Clément Foucault with contributions from Dalai Felinto
(mainly per-collection engine settings logic, and depsgraph iterator placeholder).
This makes Blender require OpenGL 3.3. Which means Intel graphic card
and OSX will break. Disable CLAY_ENGINE in CMake in those cases.
This is a prototype render engine intended to help the design of real
render engines. This is mainly an engine with enphasis in matcap and
ambient occlusion.
Implemented Features
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* Clay Render Engine, following the new API, to be used as reference for
future engines
* A more complete Matcap customization with more options
* Per-Collection render engine settings
* New Ground Truth AO - not enabled
Missing Features
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* Finish object edit mode
- Fix shaders to use new matrix
- Fix artifacts when edge does off screen
- Fix depth issue
- Selection sillhouette
- Mesh wires
- Use mesh normals (for higher quality matcap)
- Non-Mesh objects drawing
- Widget drawing
- Performance issues
* Finish mesh edit mode
- Derived-Mesh-less edit mode API (mesh_rende.c)
* General edit mode
- Per-collection edit mode settings
* General engines
- Per-collection engine settings
(they are their, but they still need to be flushed by depsgraph, and
used by the drawing code)
105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2005 Blender Foundation.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Clement Foucault.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file gpu_uniformbuffer.c
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* \ingroup gpu
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*/
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#include "MEM_guardedalloc.h"
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#include "BLI_blenlib.h"
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#include "GPU_extensions.h"
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#include "GPU_glew.h"
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#include "GPU_uniformbuffer.h"
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struct GPUUniformBuffer {
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int size; /* in bytes */
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GLuint bindcode; /* opengl identifier for UBO */
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int bindpoint; /* current binding point */
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};
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GPUUniformBuffer *GPU_uniformbuffer_create(int size, const void *data, char err_out[256])
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{
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GPUUniformBuffer *ubo = MEM_callocN(sizeof(GPUUniformBuffer), "GPUUniformBuffer");
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ubo->size = size;
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/* Generate Buffer object */
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glGenBuffers(1, &ubo->bindcode);
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if (!ubo->bindcode) {
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if (err_out)
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BLI_snprintf(err_out, 256, "GPUUniformBuffer: UBO create failed");
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GPU_uniformbuffer_free(ubo);
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return NULL;
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}
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if (ubo->size > GPU_max_ubo_size()) {
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if (err_out)
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BLI_snprintf(err_out, 256, "GPUUniformBuffer: UBO too big");
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GPU_uniformbuffer_free(ubo);
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return NULL;
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}
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glBindBuffer(GL_UNIFORM_BUFFER, ubo->bindcode);
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glBufferData(GL_UNIFORM_BUFFER, ubo->size, data, GL_DYNAMIC_DRAW);
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glBindBuffer(GL_UNIFORM_BUFFER, 0);
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return ubo;
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}
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void GPU_uniformbuffer_free(GPUUniformBuffer *ubo)
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{
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glDeleteBuffers(1, &ubo->bindcode);
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MEM_freeN(ubo);
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}
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void GPU_uniformbuffer_update(GPUUniformBuffer *ubo, const void *data)
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{
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glBindBuffer(GL_UNIFORM_BUFFER, ubo->bindcode);
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glBufferSubData(GL_UNIFORM_BUFFER, 0, ubo->size, data);
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glBindBuffer(GL_UNIFORM_BUFFER, 0);
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}
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void GPU_uniformbuffer_bind(GPUUniformBuffer *ubo, int number)
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{
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if (number >= GPU_max_ubo_binds()) {
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fprintf(stderr, "Not enough UBO slots.\n");
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return;
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}
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if (ubo->bindcode != 0) {
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glBindBufferBase(GL_UNIFORM_BUFFER, number, ubo->bindcode);
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}
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ubo->bindpoint = number;
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}
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int GPU_uniformbuffer_bindpoint(GPUUniformBuffer *ubo)
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{
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return ubo->bindpoint;
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} |