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kwin: Fix the glBlendFunc() in the shader case.

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The RGB values were being multiplied by the alpha value twice.
This commit is contained in:
Fredrik Höglund 2011-02-04 21:44:50 +01:00 committed by Marco Martin
parent 783cde7bbd
commit d4ba7b5e6b
1 changed files with 1 additions and 1 deletions
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2
scene_opengl.cpp
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@ -723,7 +723,7 @@ void SceneOpenGL::Window::prepareShaderRenderStates(TextureType type, double opa
if (!opaque) {
glEnable(GL_BLEND);
if (alpha) {
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
} else {
glBlendColor((float)opacity, (float)opacity, (float)opacity, (float)opacity);
glBlendFunc(GL_ONE, GL_ONE_MINUS_CONSTANT_ALPHA);