44 lines
953 B
GLSL
44 lines
953 B
GLSL
#version 450
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#extension GL_GOOGLE_include_directive : enable
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#include "lib/common.glsl"
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#include "lib/deferred_vertex.glsl"
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CAMERA(0, camera)
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STORAGE_BUFFER(1, Object, objects)
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// Attributes
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IN(0, vec3, position)
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IN(1, uint, normal_id)
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IN(2, vec3, color)
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IN(3, float, occlusion)
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// normal lookup table
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const vec3 normals[7] = vec3[7] (
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vec3(0,0,0), // normal 0 - undefined
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vec3(1,0,0), // x+
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vec3(-1,0,0), // x-
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vec3(0,1,0), // y+
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vec3(0,-1,0), // y-
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vec3(0,0,1), // z+
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vec3(0,0,-1) // z-
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);
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void main()
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{
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mat4 mv = camera.View * objects.item[gl_InstanceIndex].model;
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// gbuffer diffuse
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out_color = vec4(in_color, 1 - in_occlusion);
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// gbuffer view space position
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out_position = (mv * vec4(in_position.xyz, 1.0)).xyz;
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// gbuffer view space normal
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vec3 normal = normals[in_normal_id];
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out_normal = normalize((mv * vec4(normal, 0.0)).xyz);
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// vertex clip space position
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gl_Position = camera.Proj * vec4(out_position, 1);
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}
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