Simplify shaders by moving fill-in light to a separate program

git-svn-id: svn://cook.msm.cam.ac.uk:745/thrust3d/thrust3d@218 84d2e878-0bd5-11dd-ad15-13eda11d74c5

1 files changed, 40 insertions, 0 deletions

diff --git a/data/shaders/fill-light.vert b/data/shaders/fill-light.vert
new file mode 100644
index 0000000..38dcfc9
--- /dev/null
+++ b/data/shaders/fill-light.vert
@@ -0,0 +1,40 @@
+/*
+ * fill-light.vert
+ *
+ * Lighting calculations for the lander craft
+ *
+ * (c) 2007-2008 Thomas White <taw27@cam.ac.uk>
+ *
+ *  thrust3d - a silly game
+ *
+ */
+
+varying vec3 pos;
+varying vec3 normal;
+
+varying vec3 light2vc;
+
+varying vec3 col_ambi_diff;
+varying vec3 col_emit;
+
+void main() {
+	
+	vec4 vert;
+	
+	vert = gl_ModelViewMatrix * gl_Vertex;
+	pos = vert.xyz;
+	normal = gl_NormalMatrix * gl_Normal;
+	
+	/* Light 2: Fill-in light for lander */
+	light2vc = normalize(vec3(gl_LightSource[2].position));
+	
+	/* Material properties */
+	col_ambi_diff = gl_Color.rgb;
+	col_emit = gl_FrontMaterial.emission.rgb;
+	
+	/* Coordinates */
+	gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;
+	gl_Position = ftransform();
+	
+}
+