Use texture2DProj for correct interpolation of shadow coords.

1 files changed, 2 insertions, 2 deletions

diff --git a/ground.frag b/ground.frag
index dca71f2..8af0fb5 100644
--- a/ground.frag
+++ b/ground.frag
@@ -1,12 +1,12 @@
 uniform vec3 light_eye;
-varying vec2 shadow_coords;
+varying vec3 shadow_coords;
 varying vec3 vertex_eye;
 uniform sampler2D shadow_sampler;
 
 void main()
 {
 	vec3 normal = vec3(0.0, 0.0, 1.0);
-	vec4 material_color = texture2D(shadow_sampler, shadow_coords);
+	vec4 material_color = texture2DProj(shadow_sampler, shadow_coords);
 	vec3 l = normalize(light_eye - vertex_eye);
 	vec3 v = normalize(-vertex_eye);
 	vec3 h = normalize(l + v);