X-Git-Url: http://git.lukelau.me/?a=blobdiff_plain;f=billboardfrag.glsl;h=16e074e616aae9ea8101b38a11564982e249c894;hb=92594780db1f9bb51b97e68457c526fa4287a29e;hp=94d15dcb2f1e477e90ed7cba724dedfcc4f49308;hpb=c80f817e984fbabbadef14fc11bf0fa7385bc89b;p=clouds.git

diff --git a/billboardfrag.glsl b/billboardfrag.glsl
index 94d15dc..16e074e 100644
--- a/billboardfrag.glsl
+++ b/billboardfrag.glsl
@@ -4,7 +4,13 @@ uniform sampler2D tex;
 in vec2 texCoord;
 out vec4 FragColor;
 uniform bool modulate;
+uniform bool debug;
+uniform float debugVal;
 void main() {
+  if (debug) {
+    FragColor = mix(vec4(1, 1, 1, 1), vec4(1, 0, 0, 1), debugVal);
+    return;
+  }
 	// Cf = color from fragment, Ct = color from texture
 	// Cc = color from texture environment -- not set, defaults to (0,0,0,0)
 	// Af = alpha from fragment, At = alpha from texture