Populate all layers of the stencil texture

Albeit with the same projection

3 files changed, 38 insertions, 6 deletions

diff --git a/gfx/gl/shaders/shadowStencil.fs b/gfx/gl/shaders/shadowStencil.fs
index f149c23..1164cc9 100644
--- a/gfx/gl/shaders/shadowStencil.fs
+++ b/gfx/gl/shaders/shadowStencil.fs
@@ -3,13 +3,15 @@
 
 layout(binding = 0) uniform sampler2D textureAlbedo;
 
-include(`materialInterface.glsl')
+include(`materialDetail.glsl')
 include(`materialCommon.glsl')
+in vec2 gTexCoords;
+flat in MaterialDetail gMaterial;
 
 void
 main()
 {
-	if (getTextureColour(Material, TexCoords).a < 0.5) {
+	if (getTextureColour(gMaterial, gTexCoords).a < 0.5) {
 		discard;
 	}
 	gl_FragDepth = gl_FragCoord.z;
diff --git a/gfx/gl/shaders/shadowStencil.gs b/gfx/gl/shaders/shadowStencil.gs
new file mode 100644
index 0000000..eea4643
--- /dev/null
+++ b/gfx/gl/shaders/shadowStencil.gs
@@ -0,0 +1,28 @@
+#version 330 core
+#extension GL_ARB_viewport_array : enable
+
+include(`materialDetail.glsl')
+
+layout(triangles) in;
+layout(triangle_strip, max_vertices = 24) out;
+
+uniform mat4 viewProjection;
+in vec3 FragPos[];
+in vec2 TexCoords[];
+flat in MaterialDetail Material[];
+out vec2 gTexCoords;
+flat out MaterialDetail gMaterial;
+
+void
+main()
+{
+	for (gl_Layer = 0; gl_Layer < 8; ++gl_Layer) {
+		for (int v = 0; v < FragPos.length(); ++v) {
+			gl_Position = viewProjection * vec4(FragPos[v], 1);
+			gTexCoords = TexCoords[v];
+			gMaterial = Material[v];
+			EmitVertex();
+		}
+		EndPrimitive();
+	}
+}
diff --git a/gfx/gl/shaders/shadowStencil.vs b/gfx/gl/shaders/shadowStencil.vs
index 45a0867..a15c4fb 100644
--- a/gfx/gl/shaders/shadowStencil.vs
+++ b/gfx/gl/shaders/shadowStencil.vs
@@ -4,15 +4,17 @@
 layout(binding = 1) uniform usampler2DRect materialData;
 
 include(`meshIn.glsl')
-include(`materialInterface.glsl')
+include(`materialDetail.glsl')
 include(`getMaterialDetail.glsl')
-uniform mat4 viewProjection;
+
+out vec3 FragPos;
+out vec2 TexCoords;
+flat out MaterialDetail Material;
 
 void
 main()
 {
 	TexCoords = texCoord;
 	Material = getMaterialDetail(material);
-
-	gl_Position = viewProjection * vec4(position, 1);
+	FragPos = position;
 }