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https://github.com/EsotericSoftware/spine-runtimes.git
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88230582c2
* [iOS] disable objc-interp in example project & reuse struct header inside shader * [iOS] support sharing Shader Header on both cocoapods and SPM
59 lines
1.9 KiB
Metal
59 lines
1.9 KiB
Metal
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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#if __has_include("spine-ios/Sources/SpineShadersStructs/SpineShadersStructs.h")
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// Cocoapods Target
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#include "spine-ios/Sources/SpineShadersStructs/SpineShadersStructs.h"
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#elif __has_include("../../SpineShadersStructs/SpineShadersStructs.h")
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// Swift Package target
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#include "../../SpineShadersStructs/SpineShadersStructs.h"
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#else
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#error "Header not found. Please correct Header search path"
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#endif
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struct RasterizerData {
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simd_float4 position [[position]];
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simd_float4 color;
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simd_float2 textureCoordinate;
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};
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vertex RasterizerData
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vertexShader(uint vertexID [[vertex_id]],
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constant SpineVertex *vertices [[buffer(SpineVertexInputIndexVertices)]],
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constant SpineTransform *transform [[buffer(SpineVertexInputIndexTransform)]],
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constant vector_uint2 *viewportSizePointer [[buffer(SpineVertexInputIndexViewportSize)]])
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{
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RasterizerData out;
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simd_float2 pixelSpacePosition = vertices[vertexID].position.xy;
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simd_float2 viewportSize = simd_float2(*viewportSizePointer);
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out.position = simd_float4(0.0, 0.0, 0.0, 1.0);
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out.position.xy = pixelSpacePosition;
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out.position.xy *= transform->scale;
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out.position.xy += transform->translation * transform->scale + transform->offset;
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out.position.xy /= viewportSize / 2;
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out.position.y *= -1;
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out.color = vertices[vertexID].color;
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out.textureCoordinate = vertices[vertexID].uv;
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return out;
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}
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fragment simd_float4
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fragmentShader(RasterizerData in [[stage_in]],
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texture2d<half> colorTexture [[ texture(SpineTextureIndexBaseColor) ]])
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{
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constexpr sampler textureSampler (mag_filter::nearest,
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min_filter::nearest);
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const half4 colorSample = colorTexture.sample(textureSampler, in.textureCoordinate);
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return simd_float4(colorSample) * in.color;
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}
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