Support window coordinates in cycles nodes.

1 files changed, 3 insertions, 2 deletions

diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index a60421a5b29..03ec3214bf2 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -2317,12 +2317,13 @@ void node_tex_coord(vec3 I, vec3 N, mat4 viewinvmat, mat4 obinvmat,
 	out vec3 generated, out vec3 normal, out vec3 uv, out vec3 object,
 	out vec3 camera, out vec3 window, out vec3 reflection)
 {
-	generated = attr_orco * 0.5 + vec3(0.5, 0.5, 0.5);
+	generated = attr_orco * 0.5 + vec3(0.5);
 	normal = normalize((obinvmat*(viewinvmat*vec4(N, 0.0))).xyz);
 	uv = attr_uv;
 	object = (obinvmat*(viewinvmat*vec4(I, 1.0))).xyz;
 	camera = I;
-	window = gl_FragCoord.xyz;
+        vec4 projvec = gl_ProjectionMatrix * vec4(I, 1.0);
+	window = (projvec.xyz/projvec.w)*0.5 + vec3(0.5);
 
 	vec3 shade_I;
 	shade_view(I, shade_I);