Initial import of code.

1 files changed, 85 insertions, 0 deletions

diff --git a/tests/glsl/sascha-willems/instancing/instancing.vert b/tests/glsl/sascha-willems/instancing/instancing.vert
new file mode 100644
index 000000000..9f7516453
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+++ b/tests/glsl/sascha-willems/instancing/instancing.vert
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+#version 450
+//TEST:COMPARE_GLSL:
+
+#extension GL_ARB_separate_shader_objects : enable
+#extension GL_ARB_shading_language_420pack : enable
+
+// Vertex attributes
+layout (location = 0) in vec3 inPos;
+layout (location = 1) in vec3 inNormal;
+layout (location = 2) in vec2 inUV;
+layout (location = 3) in vec3 inColor;
+
+// Instanced attributes
+layout (location = 4) in vec3 instancePos;
+layout (location = 5) in vec3 instanceRot;
+layout (location = 6) in float instanceScale;
+layout (location = 7) in int instanceTexIndex;
+
+layout (binding = 0) uniform UBO 
+{
+	mat4 projection;
+	mat4 modelview;
+	vec4 lightPos;
+	float locSpeed;
+	float globSpeed;
+} ubo;
+
+layout (location = 0) out vec3 outNormal;
+layout (location = 1) out vec3 outColor;
+layout (location = 2) out vec3 outUV;
+layout (location = 3) out vec3 outViewVec;
+layout (location = 4) out vec3 outLightVec;
+
+void main() 
+{
+	outColor = inColor;
+	outUV = vec3(inUV, instanceTexIndex);
+
+	mat3 mx, my, mz;
+	
+	// rotate around x
+	float s = sin(instanceRot.x + ubo.locSpeed);
+	float c = cos(instanceRot.x + ubo.locSpeed);
+
+	mx[0] = vec3(c, s, 0.0);
+	mx[1] = vec3(-s, c, 0.0);
+	mx[2] = vec3(0.0, 0.0, 1.0);
+	
+	// rotate around y
+	s = sin(instanceRot.y + ubo.locSpeed);
+	c = cos(instanceRot.y + ubo.locSpeed);
+
+	my[0] = vec3(c, 0.0, s);
+	my[1] = vec3(0.0, 1.0, 0.0);
+	my[2] = vec3(-s, 0.0, c);
+	
+	// rot around z
+	s = sin(instanceRot.z + ubo.locSpeed);
+	c = cos(instanceRot.z + ubo.locSpeed);	
+	
+	mz[0] = vec3(1.0, 0.0, 0.0);
+	mz[1] = vec3(0.0, c, s);
+	mz[2] = vec3(0.0, -s, c);
+	
+	mat3 rotMat = mz * my * mx;
+
+	mat4 gRotMat;
+	s = sin(instanceRot.y + ubo.globSpeed);
+	c = cos(instanceRot.y + ubo.globSpeed);
+	gRotMat[0] = vec4(c, 0.0, s, 0.0);
+	gRotMat[1] = vec4(0.0, 1.0, 0.0, 0.0);
+	gRotMat[2] = vec4(-s, 0.0, c, 0.0);
+	gRotMat[3] = vec4(0.0, 0.0, 0.0, 1.0);	
+	
+	vec4 locPos = vec4(inPos.xyz * rotMat, 1.0);
+	vec4 pos = vec4((locPos.xyz * instanceScale) + instancePos, 1.0);
+
+	gl_Position = ubo.projection * ubo.modelview * gRotMat * pos;
+	outNormal = mat3(ubo.modelview * gRotMat) * inverse(rotMat) * inNormal;
+
+	pos = ubo.modelview * vec4(inPos.xyz + instancePos, 1.0);
+	vec3 lPos = mat3(ubo.modelview) * ubo.lightPos.xyz;
+	outLightVec = lPos - pos.xyz;
+	outViewVec = -pos.xyz;		
+}