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Fix T43672: Cycles preview stalls when out of view

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Campbell Barton 2015-03-05 15:07:21 +11:00
parent 1e817cceb0
commit da0176614b
1 changed files with 6 additions and 4 deletions
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10
intern/cycles/blender/blender_camera.cpp
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@ -623,10 +623,12 @@ BufferParams BlenderSync::get_buffer_params(BL::RenderSettings b_render, BL::Sce
if(use_border) {
/* border render */
params.full_x = (int)(cam->border.left * (float)width);
params.full_y = (int)(cam->border.bottom * (float)height);
params.width = (int)(cam->border.right * (float)width) - params.full_x;
params.height = (int)(cam->border.top * (float)height) - params.full_y;
/* the viewport may offset the border outside the view */
BoundBox2D border = cam->border.clamp();
params.full_x = (int)(border.left * (float)width);
params.full_y = (int)(border.bottom * (float)height);
params.width = (int)(border.right * (float)width) - params.full_x;
params.height = (int)(border.top * (float)height) - params.full_y;
/* survive in case border goes out of view or becomes too small */
params.width = max(params.width, 1);