#version 150
uniform sampler2D TextureID;
smooth in vec4 theColor;
smooth in vec2 theTextureCoord;
out vec4 outputColor;
void main()
{
vec4 value = texture2D(TextureID, theTextureCoord);
if ( value.a <= 0.01 )
discard;
outputColor = value;
}
That is my Fragment Shader. As you see, I do a simple AlphaTest. Now I want to read back the final image which is rendered for doing a Collision Test on the pixels.
At least thats my idea.
How can I do that? Or is my approach wrong?