Try out velocity norm color mapping

1 files changed, 9 insertions, 1 deletions

diff --git a/src/shader/code/vertex.glsl b/src/shader/code/vertex.glsl
index 453b6fa..516f2c6 100644
--- a/src/shader/code/vertex.glsl
+++ b/src/shader/code/vertex.glsl
@@ -7,8 +7,16 @@ out VS_OUT {
 	vec3 color;
 } vs_out;
 
+float unit(float x) {
+	return 1.0/(1.0+exp(-x));
+}
+
+vec3 getColor(float x) {
+	return x*vec3(1.0,0.0,0.0) + (1-x)*vec3(-0.5,0.0,1.0);
+}
+
 void main() {
 	gl_Position  = vec4(VertexPosition.xy, 0., 1.);
-	vs_out.color = vec3(VertexPosition.z, 0., 0.);
+	vs_out.color = getColor(unit(VertexPosition.z));
 }
 )";