32 lines
614 B
C++
32 lines
614 B
C++
#pragma once
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#include<hgl/graph/mtl/StdMaterial.h>
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STD_MTL_NAMESPACE_BEGIN
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namespace func
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{
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//@link http://www.opengl-tutorial.org/intermediate-tutorials/billboards-particles/billboards/
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constexpr const char *GetCameraViewMatrix=R"(
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mat4 GetCameraViewMatrix()
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{
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return camera.view*GetLocalToWorld();
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}
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)";
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constexpr const char *GetCameraViewRight=R"(
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vec3 GetViewRight(mat4 cv)
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{
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return vec3(cv[0][0],cv[1][0],cv[2][0]);
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}
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)";
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constexpr const char *GetCameraViewUp=R"(
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vec3 GetViewUp(mat4 cv)
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{
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return vec3(cv[0][1],cv[1][1],cv[2][1]);
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}
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)";
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}//namespace func
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STD_MTL_NAMESPACE_END
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