265 lines
7.9 KiB
GLSL
265 lines
7.9 KiB
GLSL
#version 450
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layout (points) in;
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layout (triangle_strip, max_vertices = 4) out;
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layout(location = 0) in highp uvec3 Geometry[];
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layout(location = 0) out FragmentObj {
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vec3 GeoPos; // Реальная позиция в мире
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flat uint VoxMTL; // Материал вокселя
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vec2 LUV;
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flat uint Place;
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} Fragment;
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layout(push_constant) uniform UniformBufferObject {
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mat4 projview;
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mat4 model;
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} ubo;
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// struct VoxelVertexPoint {
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// uint32_t
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// FX : 9, FY : 9, FZ : 9, // Позиция
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// Place : 3, // Положение распространения xz, xy, zy, и обратные
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// N1 : 1, // Не занято
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// LS : 1, // Масштаб карты освещения (1м/16 или 1м)
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// TX : 8, TY : 8, // Размер+1
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// VoxMtl : 16, // Материал вокселя DefVoxelId_t
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// LU : 14, LV : 14, // Позиция на карте освещения
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// N2 : 2; // Не занято
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// };
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void main() {
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vec4 baseVec = vec4(
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float(Geometry[0].x & 0x1ff) / 16.f,
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float((Geometry[0].x >> 9) & 0x1ff) / 16.f,
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float((Geometry[0].x >> 18) & 0x1ff) / 16.f,
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1
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);
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vec2 size = vec2(
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float(Geometry[0].y & 0xff)+1,
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float((Geometry[0].y >> 8) & 0xff)+1
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);
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uint voxMTL = ((Geometry[0].y >> 16) & 0xffff);
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vec2 luv = vec2(float(Geometry[0].z & 0x3fff)+0.5f, float((Geometry[0].z >> 14) & 0x3fff)+0.5f);
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int place = int(Geometry[0].x >> 27) & 0x7;
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// Стартовая вершина
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vec4 tempVec = baseVec;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = vec3(tempVec);
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv;
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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switch(place) {
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case 0: // xz
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tempVec = baseVec;
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tempVec.z += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(0, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, 0);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec.z += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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break;
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case 1: // xy
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, 0);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(0, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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break;
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case 2: // zy
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tempVec = baseVec;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(0, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.z += size.x / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, 0);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.z += size.x / 16.f;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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break;
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case 3: // xz inv
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, 0);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.z += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(0, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec.z += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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break;
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case 4: // xy inv
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tempVec = baseVec;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(0, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, 0);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.x += size.x / 16.f;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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break;
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case 5: // zy inv
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tempVec = baseVec;
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tempVec.z += size.x / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, 0);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(0, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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tempVec = baseVec;
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tempVec.z += size.x / 16.f;
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tempVec.y += size.y / 16.f;
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tempVec = ubo.model*tempVec;
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Fragment.GeoPos = tempVec.xyz;
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Fragment.VoxMTL = voxMTL;
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Fragment.LUV = luv+vec2(size.x, size.y);
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Fragment.Place = place;
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gl_Position = ubo.projview*tempVec;
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EmitVertex();
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break;
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default:
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break;
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}
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EndPrimitive();
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}
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