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Allow capturing transparent background

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Ray
2019-01-11 18:55:04 +01:00
parent e13975beeb
commit 49a69e3e27
1 changed files with 2 additions and 5 deletions
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7
src/rlgl.h
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@@ -2619,7 +2619,8 @@ unsigned char *rlReadScreenPixels(int width, int height)
{
unsigned char *screenData = (unsigned char *)calloc(width*height*4, sizeof(unsigned char));
// NOTE: glReadPixels returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer
// NOTE 1: glReadPixels returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer
// NOTE 2: We are getting alpha channel! Be careful, it can be transparent if not cleared properly!
glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, screenData);
// Flip image vertically!
@@ -2631,10 +2632,6 @@ unsigned char *rlReadScreenPixels(int width, int height)
{
// Flip line
imgData[((height - 1) - y)*width*4 + x] = screenData[(y*width*4) + x];
// Set alpha component value to 255 (no trasparent image retrieval)
// NOTE: Alpha value has already been applied to RGB in framebuffer, we don't need it!
if (((x + 1)%4) == 0) imgData[((height - 1) - y)*width*4 + x] = 255;
}
}