Vertex Displ. Mapping looking rather dark to me :-/
Card is HD 3870, WinXP Pro SP2, Catalyst 8.5.
From Catalyst 8.5, ATI has added the support of texture fetching in vertex shader. In theory, because in reality, there is a bug in Catalyst so texture fetching cause the vertex program to fail. This is still the case with Cat 8.6. I have a radeon hd 3870 and if I remove the texture fetch instruction in the vertex shader (GLSL), the rendering is ok (without displacement of course) and with the tex fetch, the rendering is black (shader execution failed). Wait for Cat8.7 and see...
