Differential D4455 Diff 14275 source/blender/draw/intern/draw_hair.c

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Show First 20 Lines • Show All 240 Lines • ▼ Show 20 Lines	#ifndef USE_TRANSFORM_FEEDBACK
/**		/**
* Workaround to tranform feedback not working on mac.		* Workaround to tranform feedback not working on mac.
* On some system it crashes (see T58489) and on some other it renders garbage (see T60171).		* On some system it crashes (see T58489) and on some other it renders garbage (see T60171).
*		*
* So instead of using transform feedback we render to a texture,		* So instead of using transform feedback we render to a texture,
* readback the result to system memory and reupload as VBO data.		* readback the result to system memory and reupload as VBO data.
* It is really not ideal performance wise, but it is the simplest		* It is really not ideal performance wise, but it is the simplest
* and the most local workaround that still uses the power of the GPU.		* and the most local workaround that still uses the power of the GPU.
**/		*/

if (g_tf_calls == NULL) {		if (g_tf_calls == NULL) {
return;		return;
}		}

/* Search ideal buffer size. */		/* Search ideal buffer size. */
uint max_size = 0;		uint max_size = 0;
for (ParticleRefineCall *pr_call = g_tf_calls; pr_call; pr_call = pr_call->next) {		for (ParticleRefineCall *pr_call = g_tf_calls; pr_call; pr_call = pr_call->next) {
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