5 void main() { gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; }
8 /* From page 38 (page 44 of the PDF) of the GLSL 1.10 spec:
10 * "A shader can redefine built-in functions. If a built-in function is
11 * redeclared in a shader (i.e. a prototype is visible) before a call to
12 * it, then the linker will only attempt to resolve that call within the
13 * set shaders that are linked with it."
17 gl_FragColor = abs(vec4(0.0, -1.0, 0.0, 1.0));
22 return vec4(1.0, 0.0, 0.0, 1.0);
27 probe all rgb 0.0 1.0 0.0