Initial normal mapping stuff

git-svn-id: svn://cook.msm.cam.ac.uk:745/thrust3d/thrust3d@176 84d2e878-0bd5-11dd-ad15-13eda11d74c5

1 files changed, 2 insertions, 0 deletions

diff --git a/data/shaders/lighting.vert b/data/shaders/lighting.vert
index 294d5ba..ddbe8ab 100644
--- a/data/shaders/lighting.vert
+++ b/data/shaders/lighting.vert
@@ -12,6 +12,7 @@
 varying vec3 normal;
 
 varying vec3 light0vc;
+varying vec3 light0hvc;
 varying vec3 light1vc;
 varying vec3 light2vc;
 varying vec3 light2hvc;
@@ -24,6 +25,7 @@ void main() {
 	/* Spotlight - positional light */
 	vec4 vert = gl_ModelViewMatrix * gl_Vertex;
 	light0vc = gl_LightSource[0].position.xyz - vert.xyz;
+	light0hvc = normalize(gl_LightSource[0].halfVector.xyz);
 	
 	/* Diffuse "background glow" - this can be normalised only once, here, since 'position'
 	 * is really 'direction' and is the same for all vertices. */