Reimplement voxel rendering with a FBO.

glsl/vxlshadow.frag

@@ -1,12 +0,0 @@
-uniform sampler2D Palette, DiffuseTexture;
-uniform vec2 PaletteRows;
-
-void main()
-{
-	vec4 x = texture2D(DiffuseTexture, gl_TexCoord[0].st);
-	vec4 color = texture2D(Palette, vec2(dot(x, gl_TexCoord[1]), PaletteRows.x));
-	if (color.a < 0.01)
-		discard;
-
-	gl_FragColor = color;
-}

glsl/vxlshadow.vert

@@ -1,26 +0,0 @@
-uniform mat4 View;
-uniform mat4 TransformMatrix;
-uniform vec4 LightDirection;
-uniform float GroundZ;
-uniform vec3 GroundNormal;
-
-vec4 DecodeChannelMask(float x)
-{
-	if (x > 0.0)
-		return (x > 0.5) ? vec4(1,0,0,0) : vec4(0,1,0,0);
-	else
-		return (x < -0.5) ? vec4(0,0,0,1) : vec4(0,0,1,0);
-}
-
-void main()
-{
-	// Distance between vertex and ground
-	float d = dot(gl_Vertex.xyz - vec3(0.0,0.0,GroundZ), GroundNormal) / dot(LightDirection.xyz, GroundNormal);
-
-	// Project onto ground plane
-	vec3 shadow = gl_Vertex.xyz - d*LightDirection.xyz;
-	gl_Position = View*TransformMatrix*vec4(shadow, 1);
-	gl_TexCoord[0] = gl_MultiTexCoord0;
-	gl_TexCoord[1] = DecodeChannelMask(gl_MultiTexCoord0.z);
-	gl_TexCoord[2] = DecodeChannelMask(gl_MultiTexCoord0.w);
-}