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-rw-r--r--src/shader/code/vertex.glsl10
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));
}
)";