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18 lines
728 B
C++
18 lines
728 B
C++
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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// Scale factor in shape's coordinates transformation from tile's coordinate
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// system.
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constant float kShapeCoordScalar = 1000.0;
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// This function applies a 2D->3D transformation matrix.
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float4 ApplyPivotTransform(float4 pivot, float4x4 pivotTransform, float pivotRealZ);
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// This function applies a 2D->3D transformation matrix to billboards.
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float4 ApplyBillboardPivotTransform(float4 pivot, float4x4 pivotTransform, float pivotRealZ, float2 offset);
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// This function calculates transformed position on an axis for line shaders family.
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float2 CalcLineTransformedAxisPos(float2 originalAxisPos, float2 shiftedPos, float4x4 modelView, float halfWidth);
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