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avoid unnecessary conversion of colours between half4 to float4 and back again

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a dinosaur
2024-08-25 15:14:00 +10:00
parent 428b142bf2
commit 8de398ce13
3 changed files with 22 additions and 9 deletions
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11
Sources/Voxelotl/shadertypes.h
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@ -10,6 +10,13 @@
#include <simd/simd.h>
// HACK: allow passing SIMD4<Float16> to shader while `simd_half4` is beta
#ifdef __METAL_VERSION__
typedef half4 color_half4;
#else
typedef simd_ushort4 color_half4;
#endif
typedef NS_ENUM(NSInteger, VertexShaderInputIdx) {
VertexShaderInputIdxVertices = 0,
VertexShaderInputIdxInstance = 1,
@ -25,7 +32,7 @@ typedef struct {
typedef struct {
matrix_float4x4 model;
matrix_float4x4 normalModel;
vector_float4 color;
color_half4 color;
} VertexShaderInstance;
typedef struct {
@ -38,7 +45,7 @@ typedef NS_ENUM(NSInteger, FragmentShaderInputIdx) {
typedef struct {
vector_float3 cameraPosition, directionalLight;
vector_float4 ambientColor, diffuseColor, specularColor;
color_half4 ambientColor, diffuseColor, specularColor;
float specularIntensity;
} FragmentShaderUniforms;