Brecht Van Lommel
45145e746d
Always compute CD_ORCO undeformed coordinates now for rendering, same as before. There is still a refresh issue to be fixed, when switching from solid to textured mode in the viewport. Computing such undeformed coordinates can be expensive and is not actually needed if the mesh is only using e.g. UV maps. This was the same in 2.79, at least now we are skipping the computation when there are no deforming mdifiers on the mesh.
216 lines
6.9 KiB
C
216 lines
6.9 KiB
C
/*
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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) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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/** \file
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* \ingroup spview3d
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*/
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#include "DNA_mesh_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_object_types.h"
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#include "BLI_math.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_global.h"
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#include "BKE_editmesh.h"
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#include "DEG_depsgraph.h"
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#include "DEG_depsgraph_query.h"
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#include "GPU_draw.h"
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#include "GPU_shader.h"
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#include "GPU_immediate.h"
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#include "GPU_batch.h"
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#include "GPU_matrix.h"
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#include "GPU_state.h"
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#include "ED_mesh.h"
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#include "UI_resources.h"
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#include "DRW_engine.h"
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#include "view3d_intern.h" /* bad level include */
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/* OpenGL Circle Drawing - Tables for Optimized Drawing Speed */
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/* 32 values of sin function (still same result!) */
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#define CIRCLE_RESOL 32
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static const float sinval[CIRCLE_RESOL] = {
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0.00000000, 0.20129852, 0.39435585, 0.57126821, 0.72479278, 0.84864425, 0.93775213,
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0.98846832, 0.99871650, 0.96807711, 0.89780453, 0.79077573, 0.65137248, 0.48530196,
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0.29936312, 0.10116832, -0.10116832, -0.29936312, -0.48530196, -0.65137248, -0.79077573,
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-0.89780453, -0.96807711, -0.99871650, -0.98846832, -0.93775213, -0.84864425, -0.72479278,
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-0.57126821, -0.39435585, -0.20129852, 0.00000000,
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};
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/* 32 values of cos function (still same result!) */
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static const float cosval[CIRCLE_RESOL] = {
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1.00000000, 0.97952994, 0.91895781, 0.82076344, 0.68896691, 0.52896401, 0.34730525,
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0.15142777, -0.05064916, -0.25065253, -0.44039415, -0.61210598, -0.75875812, -0.87434661,
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-0.95413925, -0.99486932, -0.99486932, -0.95413925, -0.87434661, -0.75875812, -0.61210598,
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-0.44039415, -0.25065253, -0.05064916, 0.15142777, 0.34730525, 0.52896401, 0.68896691,
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0.82076344, 0.91895781, 0.97952994, 1.00000000,
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};
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static void circball_array_fill(float verts[CIRCLE_RESOL][3],
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const float cent[3],
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float rad,
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const float tmat[4][4])
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{
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float vx[3], vy[3];
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float *viter = (float *)verts;
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mul_v3_v3fl(vx, tmat[0], rad);
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mul_v3_v3fl(vy, tmat[1], rad);
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for (uint a = 0; a < CIRCLE_RESOL; a++, viter += 3) {
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viter[0] = cent[0] + sinval[a] * vx[0] + cosval[a] * vy[0];
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viter[1] = cent[1] + sinval[a] * vx[1] + cosval[a] * vy[1];
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viter[2] = cent[2] + sinval[a] * vx[2] + cosval[a] * vy[2];
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}
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}
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void imm_drawcircball(const float cent[3], float rad, const float tmat[4][4], unsigned pos)
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{
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float verts[CIRCLE_RESOL][3];
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circball_array_fill(verts, cent, rad, tmat);
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immBegin(GPU_PRIM_LINE_LOOP, CIRCLE_RESOL);
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for (int i = 0; i < CIRCLE_RESOL; ++i) {
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immVertex3fv(pos, verts[i]);
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}
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immEnd();
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}
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#ifdef VIEW3D_CAMERA_BORDER_HACK
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uchar view3d_camera_border_hack_col[3];
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bool view3d_camera_border_hack_test = false;
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#endif
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/* ***************** BACKBUF SEL (BBS) ********* */
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void ED_draw_object_facemap(Depsgraph *depsgraph,
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Object *ob,
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const float col[4],
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const int facemap)
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{
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/* happens on undo */
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if (ob->type != OB_MESH || !ob->data) {
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return;
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}
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Mesh *me = ob->data;
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{
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Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob);
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if (ob_eval->runtime.mesh_eval) {
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me = ob_eval->runtime.mesh_eval;
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}
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}
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glFrontFace((ob->transflag & OB_NEG_SCALE) ? GL_CW : GL_CCW);
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/* Just to create the data to pass to immediate mode, grr! */
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const int *facemap_data = CustomData_get_layer(&me->pdata, CD_FACEMAP);
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if (facemap_data) {
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GPU_blend_set_func_separate(
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GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
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GPU_blend(true);
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const MVert *mvert = me->mvert;
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const MPoly *mpoly = me->mpoly;
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const MLoop *mloop = me->mloop;
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int mpoly_len = me->totpoly;
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int mloop_len = me->totloop;
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facemap_data = CustomData_get_layer(&me->pdata, CD_FACEMAP);
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/* use gawain immediate mode fore now */
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const int looptris_len = poly_to_tri_count(mpoly_len, mloop_len);
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const int vbo_len_capacity = looptris_len * 3;
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int vbo_len_used = 0;
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GPUVertFormat format_pos = {0};
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const uint pos_id = GPU_vertformat_attr_add(
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&format_pos, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
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GPUVertBuf *vbo_pos = GPU_vertbuf_create_with_format(&format_pos);
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GPU_vertbuf_data_alloc(vbo_pos, vbo_len_capacity);
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GPUVertBufRaw pos_step;
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GPU_vertbuf_attr_get_raw_data(vbo_pos, pos_id, &pos_step);
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const MPoly *mp;
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int i;
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if (me->runtime.looptris.array) {
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MLoopTri *mlt = me->runtime.looptris.array;
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for (mp = mpoly, i = 0; i < mpoly_len; i++, mp++) {
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if (facemap_data[i] == facemap) {
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for (int j = 2; j < mp->totloop; j++) {
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copy_v3_v3(GPU_vertbuf_raw_step(&pos_step), mvert[mloop[mlt->tri[0]].v].co);
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copy_v3_v3(GPU_vertbuf_raw_step(&pos_step), mvert[mloop[mlt->tri[1]].v].co);
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copy_v3_v3(GPU_vertbuf_raw_step(&pos_step), mvert[mloop[mlt->tri[2]].v].co);
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vbo_len_used += 3;
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mlt++;
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}
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}
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else {
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mlt += mp->totloop - 2;
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}
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}
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}
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else {
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/* No tessellation data, fan-fill. */
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for (mp = mpoly, i = 0; i < mpoly_len; i++, mp++) {
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if (facemap_data[i] == facemap) {
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const MLoop *ml_start = &mloop[mp->loopstart];
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const MLoop *ml_a = ml_start + 1;
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const MLoop *ml_b = ml_start + 2;
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for (int j = 2; j < mp->totloop; j++) {
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copy_v3_v3(GPU_vertbuf_raw_step(&pos_step), mvert[ml_start->v].co);
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copy_v3_v3(GPU_vertbuf_raw_step(&pos_step), mvert[ml_a->v].co);
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copy_v3_v3(GPU_vertbuf_raw_step(&pos_step), mvert[ml_b->v].co);
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vbo_len_used += 3;
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ml_a++;
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ml_b++;
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}
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}
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}
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}
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if (vbo_len_capacity != vbo_len_used) {
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GPU_vertbuf_data_resize(vbo_pos, vbo_len_used);
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}
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GPUBatch *draw_batch = GPU_batch_create(GPU_PRIM_TRIS, vbo_pos, NULL);
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GPU_batch_program_set_builtin(draw_batch, GPU_SHADER_3D_UNIFORM_COLOR);
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GPU_batch_uniform_4fv(draw_batch, "color", col);
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GPU_batch_draw(draw_batch);
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GPU_batch_discard(draw_batch);
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GPU_vertbuf_discard(vbo_pos);
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GPU_blend(false);
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}
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}
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