Commit: 2096efa32f8842a4d56e861d43fa25e34b29b2c9
Author: Campbell Barton
Date: Wed Mar 8 06:20:10 2017 +1100
Branches: temp-select-pick
https://developer.blender.org/rB2096efa32f8842a4d56e861d43fa25e34b29b2c9
Avoid initial buffer read, fill with 1.0
===================================================================
M source/blender/gpu/intern/gpu_select_pick.c
===================================================================
diff --git a/source/blender/gpu/intern/gpu_select_pick.c
b/source/blender/gpu/intern/gpu_select_pick.c
index bdaa58985e..d5fbf17df6 100644
--- a/source/blender/gpu/intern/gpu_select_pick.c
+++ b/source/blender/gpu/intern/gpu_select_pick.c
@@ -239,8 +239,14 @@ void gpu_select_pick_begin(
ps->gl.is_init = false;
ps->gl.prev_id = 0;
- /* TODO, find exact value this will be and write into it
(clip-far?) */
+ /* set initial 'far' value */
+#if 0
glReadPixels(UNPACK4(ps->gl.clip_readpixels),
GL_DEPTH_COMPONENT, GL_FLOAT, ps->gl.rect_depth->buf);
+#else
+ for (unsigned int i = 0; i < rect_len; i++) {
+ ps->gl.rect_depth->buf[i] = 1.0;
+ }
+#endif
if (mode == GPU_SELECT_PICK_SORT_ALL) {
glEnable(GL_DEPTH_TEST);
@@ -433,7 +439,8 @@ unsigned int gpu_select_pick_end(void)
ps->all.hits = NULL;
ps->all.hits_len = 0;
ps->all.hits_len_alloc = 0;
- } else {
+ }
+ else {
/* GPU_SELECT_PICK_SORT_NEAREST */
/* Over alloc (unlikely we have as many depths as pixels) */
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