mirror of
https://github.com/ncblakely/GiantsTools
synced 2024-12-24 00:07:22 +01:00
291 lines
7.3 KiB
HLSL
291 lines
7.3 KiB
HLSL
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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//
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// Based on the Visual Studio 3D Starter Kit
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//
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// http://aka.ms/vs3dkit
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//
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cbuffer MaterialVars : register (b0)
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{
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float4 MaterialAmbient;
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float4 MaterialDiffuse;
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float4 MaterialSpecular;
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float4 MaterialEmissive;
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float MaterialSpecularPower;
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};
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cbuffer ObjectVars : register(b2)
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{
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float4x4 LocalToWorld4x4;
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float4x4 LocalToProjected4x4;
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float4x4 WorldToLocal4x4;
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float4x4 WorldToView4x4;
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float4x4 UVTransform4x4;
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float3 EyePosition;
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};
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cbuffer BoneVars : register(b4)
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{
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float4x3 Bones[72];
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};
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struct A2V
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{
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float4 pos : SV_Position;
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float3 normal : NORMAL0;
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float4 tangent : TANGENT0;
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float2 uv : TEXCOORD0;
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};
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struct A2V_Vc
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{
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float4 pos : SV_Position;
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float3 normal : NORMAL0;
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float4 tangent : TANGENT0;
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float4 color : COLOR0;
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float2 uv : TEXCOORD0;
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};
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struct A2V_Weights
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{
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float4 pos : SV_Position;
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float3 normal : NORMAL0;
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float4 tangent : TANGENT0;
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float2 uv : TEXCOORD0;
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uint4 boneIndices : BLENDINDICES0;
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float4 blendWeights : BLENDWEIGHT0;
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};
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struct A2V_WeightsVc
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{
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float4 pos : SV_Position;
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float3 normal : NORMAL0;
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float4 tangent : TANGENT0;
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float4 color : COLOR0;
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float2 uv : TEXCOORD0;
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uint4 boneIndices : BLENDINDICES0;
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float4 blendWeights : BLENDWEIGHT0;
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};
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struct V2P
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{
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float4 pos : SV_POSITION;
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float4 diffuse : COLOR;
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float2 uv : TEXCOORD0;
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float3 worldNorm : TEXCOORD1;
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float3 worldPos : TEXCOORD2;
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float3 toEye : TEXCOORD3;
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float4 tangent : TEXCOORD4;
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float3 normal : TEXCOORD5;
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};
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// Skinning helper functions
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void Skin(inout A2V_Weights vertex, uniform int boneCount)
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{
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float4x3 skinning = 0;
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[unroll]
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for (int i = 0; i < boneCount; i++)
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{
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skinning += Bones[ vertex.boneIndices[i] ] * vertex.blendWeights[ i ];
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}
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vertex.pos.xyz = mul(vertex.pos, skinning);
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vertex.normal = mul(vertex.normal, (float3x3)skinning);
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vertex.tangent.xyz = mul((float3)vertex.tangent, (float3x3)skinning);
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}
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void SkinVc(inout A2V_WeightsVc vertex, uniform int boneCount)
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{
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float4x3 skinning = 0;
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[unroll]
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for (int i = 0; i < boneCount; i++)
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{
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skinning += Bones[vertex.boneIndices[i]] * vertex.blendWeights[i];
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}
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vertex.pos.xyz = mul(vertex.pos, skinning);
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vertex.normal = mul(vertex.normal, (float3x3)skinning);
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vertex.tangent.xyz = mul((float3)vertex.tangent, (float3x3)skinning);
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}
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// Vertex shader: no per-vertex-color, no skinning
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V2P main(A2V vertex)
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{
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V2P result;
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: per-vertex-color, no skinning
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V2P mainVc(A2V_Vc vertex)
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{
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V2P result;
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = vertex.color * MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: no per-vertex-color, 1-bone skinning
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V2P main1Bones(A2V_Weights vertex)
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{
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V2P result;
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Skin(vertex, 1);
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: no per-vertex-color, 2-bone skinning
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V2P main2Bones(A2V_Weights vertex)
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{
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V2P result;
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Skin(vertex, 2);
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: no per-vertex-color, 4-bone skinning
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V2P main4Bones(A2V_Weights vertex)
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{
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V2P result;
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Skin(vertex, 4);
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: per-vertex-color, 1-bone skinning
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V2P main1BonesVc(A2V_WeightsVc vertex)
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{
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V2P result;
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SkinVc(vertex, 1);
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = vertex.color * MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: per-vertex-color, 2-bone skinning
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V2P main2BonesVc(A2V_WeightsVc vertex)
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{
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V2P result;
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SkinVc(vertex, 2);
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = vertex.color * MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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// Vertex shader: per-vertex-color, 4-bone skinning
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V2P main4BonesVc(A2V_WeightsVc vertex)
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{
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V2P result;
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SkinVc(vertex, 4);
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float3 wp = mul(vertex.pos, LocalToWorld4x4).xyz;
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// set output data
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result.pos = mul(vertex.pos, LocalToProjected4x4);
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result.diffuse = vertex.color * MaterialDiffuse;
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result.uv = mul(float4(vertex.uv.x, vertex.uv.y, 0, 1), UVTransform4x4).xy;
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result.worldNorm = mul(vertex.normal, (float3x3)LocalToWorld4x4);
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result.worldPos = wp;
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result.toEye = EyePosition - wp;
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result.tangent = vertex.tangent;
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result.normal = vertex.normal;
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return result;
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}
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