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Graphics / SFML Game Development [Parameter <name> was not found in shader]

« on: June 18, 2014, 02:50:54 pm »

Hey Guys,
i have a problem with the shader-class of the book in the topic.
I receive only this output:



This is one shader:

uniform sampler2D       source;
uniform vec2            offsetFactor;

void main()
{
        vec2 textureCoordinates = gl_TexCoord[0].xy;
        vec4 color = vec4(0.0);
        color += texture2D(source, textureCoordinates - 4.0 * offsetFactor) * 0.0162162162;
        color += texture2D(source, textureCoordinates - 3.0 * offsetFactor) * 0.0540540541;
        color += texture2D(source, textureCoordinates - 2.0 * offsetFactor) * 0.1216216216;
        color += texture2D(source, textureCoordinates - offsetFactor) * 0.1945945946;
        color += texture2D(source, textureCoordinates) * 0.2270270270;
        color += texture2D(source, textureCoordinates + offsetFactor) * 0.1945945946;
        color += texture2D(source, textureCoordinates + 2.0 * offsetFactor) * 0.1216216216;
        color += texture2D(source, textureCoordinates + 3.0 * offsetFactor) * 0.0540540541;
        color += texture2D(source, textureCoordinates + 4.0 * offsetFactor) * 0.0162162162;
        gl_FragColor = color;
}

I have copied the code for the effect class out of the book.

Sorry for my bad english.