Use textureSize() instead of sending in uniforms manually. Same result, less code...

[nageru] / prewarp.frag

diff --git a/prewarp.frag b/prewarp.frag
index b9645bf2c805de1a77593c977928164d409b03cb..4b2db4408ee8d9d35af8c4f72de10cafe5b05e3a 100644 (file)
--- a/prewarp.frag
+++ b/prewarp.frag
@@ -7,7 +7,6 @@ out float I, I_t;
 out vec2 normalized_flow;
 
 uniform sampler2D image0_tex, image1_tex, flow_tex;
-uniform vec2 image_size;
 
 void main()
 {
@@ -19,5 +18,5 @@ void main()
 
        I = 0.5f * (I_0 + I_w);
        I_t = I_w - I_0;
-       normalized_flow = flow.xy * image_size;
+       normalized_flow = flow.xy * textureSize(image0_tex, 0);
 }