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OpenGL: use sized texture internal formats

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Maybe this is pedantic but I read it’s best to explicitly set the
desired component size.

Also append “_ARB” to float texture formats since those need an
extension in GL 2.1.
This commit is contained in:
Mike Erwin
2015-12-08 01:19:08 -05:00
parent c013d64a0a
commit 6006173f4a
7 changed files with 21 additions and 17 deletions
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2
intern/cycles/device/device_cuda.cpp
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@@ -830,7 +830,7 @@ public:
if(mem.data_type == TYPE_HALF)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA16F_ARB, pmem.w, pmem.h, 0, GL_RGBA, GL_HALF_FLOAT, NULL);
else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pmem.w, pmem.h, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, pmem.w, pmem.h, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glBindTexture(GL_TEXTURE_2D, 0);