Generate fluid display using geometry shaders

This should provide much more flexibility.

For our purpose it would be useful if the vertex shader was executed
after the geometry shader (to apply the projection matrix) but alas
this is not the case. Thus the MVP matrix is applied during geometry
construction and the vertex shader only provides density extraction.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/shader/code/fragment.glsl b/src/shader/code/fragment.glsl
index 37e18bd..a4121b8 100644
--- a/src/shader/code/fragment.glsl
+++ b/src/shader/code/fragment.glsl
@@ -1,5 +1,10 @@
 static const std::string FRAGMENT_SHADER_CODE = R"(
+#version 430
+
+in  vec3 color;
+out vec4 FragColor;
+
 void main() {
-	gl_FragColor = gl_Color;
+	FragColor = vec4(color.xyz, 0.0);
 }
 )";