UnrealXR/raylib
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Detected issue

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raysan5 2015-08-29 17:01:36 +02:00
parent 9dd20577cd
commit 5cfd59258a
1 changed files with 4 additions and 2 deletions
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6
src/rlgl.c
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@ -1938,15 +1938,17 @@ Model rlglLoadModel(VertexData mesh)
} }
// Read screen pixel data (color buffer) // Read screen pixel data (color buffer)
// ISSUE: Non pre-multiplied alpha when reading from backbuffer!
// TODO: Multiply alpha
unsigned char *rlglReadScreenPixels(int width, int height) unsigned char *rlglReadScreenPixels(int width, int height)
{ {
unsigned char *screenData = (unsigned char *)malloc(width * height * sizeof(unsigned char) * 4); unsigned char *screenData = (unsigned char *)malloc(width*height*sizeof(unsigned char)*4);
// NOTE: glReadPixels returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer // NOTE: glReadPixels returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, screenData); glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, screenData);
// Flip image vertically! // Flip image vertically!
unsigned char *imgData = (unsigned char *)malloc(width * height * sizeof(unsigned char) * 4); unsigned char *imgData = (unsigned char *)malloc(width*height*sizeof(unsigned char)*4);
for (int y = height-1; y >= 0; y--) for (int y = height-1; y >= 0; y--)
{ {