Ogre 3D 1.7

Time for action — using textures in shaders

1. Create a new material named MyMaterial14. Also create two new shaders named MyFragmentShader2 and MyVertexShader2. Remember to copy the fragment and vertex program definitions in the material file. Add to the material file a texture unit with the rock texture:

   texture_unit
   {
   texture terr_rock6.jpg
   }
   

2. We need to add two new parameters to our fragment shader. The first is a two tuple of floats for the texture coordinates. Therefore, we also use the semantic to mark the parameter as the first texture coordinates we are using. The other new parameter is of type sampler2D, which is another name for texture. Because the texture doesn't change on a per fragment basis, we mark it as uniform. This keyword indicates ...