bättre ringworld

src/Universe.App/Graphics/Shaders/ring-world.vert.glsl

@@ -0,0 +1,27 @@
+#version 330 core
+layout(location=0) in vec3 aPosition;
+layout(location=1) in vec3 aNormal;
+layout(location=2) in vec3 aDirection;
+uniform vec3 uChunkPosition;
+uniform vec3 uBodyOrigin;
+uniform float uRadius;
+uniform mat4 uViewProjection;
+uniform mat4 uBodyToWorld;
+uniform float uFar;
+uniform vec3 uMaterialAnchor;
+out vec3 vMaterial;
+out vec3 vBody;
+out vec3 vDirection;
+out vec3 vNormal;
+out vec3 vWorld;
+out float vFragDepth;
+void main() {
+    vWorld=uChunkPosition+mat3(uBodyToWorld)*aPosition;
+    vMaterial=aPosition+uMaterialAnchor;
+    vBody=uBodyOrigin+aPosition/uRadius;
+    vDirection=aDirection; vNormal=aNormal;
+    vec4 clip=uViewProjection*vec4(vWorld,1);
+    vFragDepth=clip.w+1.0;
+    gl_Position=clip;
+    gl_Position.z=(2.0*log2(max(.0001,vFragDepth))/log2(uFar+1.0)-1.0)*clip.w;
+}