From f1040d7d9444ff6b0354b656e8265672f6600372 Mon Sep 17 00:00:00 2001 From: Alexander Gavrilov Date: Mon, 8 Aug 2016 13:48:03 +0300 Subject: Disable depth buffer writes while rendering smoke in the viewport. Depth buffer values are used by the viewport pan and zoom code to adjust response scaling factors between mouse and viewport movement. Letting smoke write to the buffer confuses it and causes the camera to get stuck and move very slowly inside smoke domains, because it thinks it is very close to an object. --- source/blender/editors/space_view3d/drawvolume.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'source') diff --git a/source/blender/editors/space_view3d/drawvolume.c b/source/blender/editors/space_view3d/drawvolume.c index e93d840eddd..8dbc2788744 100644 --- a/source/blender/editors/space_view3d/drawvolume.c +++ b/source/blender/editors/space_view3d/drawvolume.c @@ -379,11 +379,13 @@ void draw_smoke_volume(SmokeDomainSettings *sds, Object *ob, /* setup buffer and draw */ - int gl_depth = 0, gl_blend = 0; + int gl_depth = 0, gl_blend = 0, gl_depth_write = 0; glGetBooleanv(GL_BLEND, (GLboolean *)&gl_blend); glGetBooleanv(GL_DEPTH_TEST, (GLboolean *)&gl_depth); + glGetBooleanv(GL_DEPTH_WRITEMASK, (GLboolean *)&gl_depth_write); glEnable(GL_DEPTH_TEST); + glDepthMask(GL_FALSE); glEnable(GL_BLEND); glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); @@ -422,6 +424,8 @@ void draw_smoke_volume(SmokeDomainSettings *sds, Object *ob, GPU_shader_unbind(); + glDepthMask(gl_depth_write); + if (!gl_blend) { glDisable(GL_BLEND); } -- cgit v1.2.3