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Reducing startup time significantly

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Dynamitos
2023-11-13 09:07:23 +01:00
parent b3c9af384b
commit a545426b32
11 changed files with 134 additions and 62 deletions
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res/shaders/lib/BRDF.slang
+1 -1
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@@ -29,7 +29,7 @@ struct BlinnPhong : IBRDF
float3 h = normalize(lightDir_TS + viewDir_TS);
float nDotH = saturate(dot(normal, h));
return baseColor * (nDotL + nDotH) * lightColor;
return baseColor;
}
};
res/shaders/lib/LightEnv.slang
+20 -24
View File
@@ -4,7 +4,7 @@ import MaterialParameter;
interface ILightEnv
{
float3 illuminate<B:IBRDF>(MaterialParameter input, B brdf);
float3 illuminate<B:IBRDF>(LightingParameter input, B brdf);
};
struct DirectionalLight : ILightEnv
@@ -12,10 +12,10 @@ struct DirectionalLight : ILightEnv
float4 color;
float4 direction;
float3 illuminate<B:IBRDF>(MaterialParameter input, B brdf)
float3 illuminate<B:IBRDF>(LightingParameter params, B brdf)
{
float3 lightDir_TS = normalize(direction.xyz);
return brdf.evaluate(input.viewDir_TS, -lightDir_TS, color.xyz);
float3 lightDir_TS = mul(params.tbn, normalize(direction.xyz));
return brdf.evaluate(params.viewDir_TS, -lightDir_TS, color.xyz);
}
};
@@ -24,41 +24,37 @@ struct PointLight : ILightEnv
float4 position_WS;
float4 colorRange;
float3 illuminate<B:IBRDF>(MaterialParameter input, B brdf)
float3 illuminate<B:IBRDF>(LightingParameter params, B brdf)
{
float3 position_TS = position_WS.xyz;
float3 lightDir_TS = position_TS - input.position_TS;
float3 position_TS = mul(params.tbn, position_WS.xyz);
float3 lightDir_TS = position_TS - params.position_TS;
float d = length(lightDir_TS);
float illuminance = max(1 - d / colorRange.w, 0);
return illuminance * brdf.evaluate(input.viewDir_TS, normalize(lightDir_TS), colorRange.xyz);
return illuminance * brdf.evaluate(params.viewDir_TS, normalize(lightDir_TS), colorRange.xyz);
}
bool insidePlane(Plane plane)
{
return dot(plane.n, getViewPos().xyz) - plane.d < -colorRange.w;
return true;//dot(plane.n, getViewPos().xyz) - plane.d < -colorRange.w;
}
bool insideFrustum(Frustum frustum, float zNear, float zFar)
{
bool result = true;
if(getViewPos().z - colorRange.w > zNear || getViewPos().z + colorRange.w < zFar)
{
//result = false;
}
for(int i = 0; i < 4 && result; ++i)
{
if(insidePlane(frustum.sides[i]))
{
//result = false;
}
}
//if(getViewPos().z - colorRange.w > zNear || getViewPos().z + colorRange.w < zFar)
//{
// //result = false;
//}
//for(int i = 0; i < 4 && result; ++i)
//{
// if(insidePlane(frustum.sides[i]))
// {
// //result = false;
// }
//}
return result;
}
float3 getViewPos()
{
return mul(pViewParams.viewMatrix, position_WS).xyz;
}
};
struct LightEnv
res/shaders/lib/MaterialParameter.slang
+74 -11
View File
@@ -1,17 +1,80 @@
import Common;
struct MaterialParameter
{
float3 position_TS;
float3 worldPosition;
float2 texCoords;
float3 normal;
float3 tangent;
float3 biTangent;
float3 viewDir_TS;
float3 vertexColor;
}
float3 position_TS : POSITION0;
float3 position_WS : POSITION1;
float2 texCoords : TEXCOORDS0;
float3 vertexColor : COLOR0;
};
// data used by light environment
struct LightingParameter
{
// world to tangent space
float3x3 tbn;
float3 position_TS;
float3 viewDir_TS;
};
// data passed to fragment shader
struct FragmentParameter
{
float3 position_TS;
float3 viewDir_TS;
float3 normal_WS;
float3 tangent_WS;
float3 biTangent_WS;
float3 position_WS;
float4 position_CS : SV_Position;
float2 texCoords;
float3 vertexColor;
MaterialParameter getMaterialParameter()
{
MaterialParameter result;
result.position_TS = position_TS;
result.position_WS = position_WS;
result.texCoords = texCoords;
result.vertexColor = vertexColor;
return result;
}
LightingParameter getLightingParameter()
{
LightingParameter result;
result.tbn = transpose(float3x3(normalize(tangent_WS), normalize(biTangent_WS), normalize(normal_WS)));
result.position_TS = position_TS;
result.viewDir_TS = viewDir_TS;
return result;
}
};
// data retrieved from VertexData
struct VertexAttributes
{
MaterialParameter parameter : PARAMETER;
float4 clipPosition: SV_POSITION;
float3 normal_MS;
float3 tangent_MS;
float3 biTangent_MS;
float3 position_WS;
float4 position_CS;
float2 texCoords;
float3 vertexColor;
FragmentParameter getParameter(float4x4 transformMatrix)
{
float3 tangent_WS = mul(transformMatrix, float4(normalize(tangent_MS), 0)).xyz;
float3 biTangent_WS = mul(transformMatrix, float4(normalize(biTangent_MS), 0)).xyz;
float3 normal_WS = mul(transformMatrix, float4(normalize(normal_MS), 0)).xyz;
// Transforms from world space into tangent space
float3x3 tbn = transpose(float3x3(tangent_WS, biTangent_WS, normal_WS));
FragmentParameter result;
result.position_TS = mul(tbn, position_WS);
result.viewDir_TS = mul(tbn, pViewParams.cameraPos_WS.xyz - position_WS);
result.normal_WS = normal_WS;
result.tangent_WS = tangent_WS;
result.biTangent_WS = biTangent_WS;
result.position_WS = position_WS;
result.position_CS = position_CS;
result.texCoords = texCoords;
result.vertexColor = vertexColor;
return result;
}
};
res/shaders/lib/StaticMeshVertexData.slang
+9 -11
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@@ -7,19 +7,17 @@ struct StaticMeshVertexData : IVertexData
VertexAttributes getAttributes(uint index, float4x4 transform)
{
VertexAttributes attributes;
MaterialParameter params;
float4 localPos = float4(positions[3 * index + 0], positions[3 * index + 1], positions[3 * index + 2], 1);
float4 worldPos = mul(transform, localPos);
float4 modelPos = float4(positions[3 * index + 0], positions[3 * index + 1], positions[3 * index + 2], 1);
float4 worldPos = mul(transform, modelPos);
float4 viewPos = mul(pViewParams.viewMatrix, worldPos);
float4 clipPos = mul(pViewParams.projectionMatrix, viewPos);
params.worldPosition = worldPos.xyz;
params.texCoords = float2(texCoords[2 * index + 0], texCoords[2 * index + 1]);
params.normal = float3(normals[3 * index + 0], normals[3 * index + 1], normals[3 * index + 2]);
params.tangent = float3(tangents[3 * index + 0], tangents[3 * index + 1], tangents[3 * index + 2]);
params.biTangent = float3(biTangents[3 * index + 0], biTangents[3 * index + 1], biTangents[3 * index + 2]);
params.vertexColor = float3(color[3 * index + 0], color[3 * index + 1], color[3 * index + 2]);
attributes.parameter = params;
attributes.clipPosition = clipPos;
attributes.normal_MS = float3(normals[3 * index + 0], normals[3 * index + 1], normals[3 * index + 2]);
attributes.tangent_MS = float3(tangents[3 * index + 0], tangents[3 * index + 1], tangents[3 * index + 2]);
attributes.biTangent_MS = float3(biTangents[3 * index + 0], biTangents[3 * index + 1], biTangents[3 * index + 2]);
attributes.position_WS = worldPos.xyz;
attributes.position_CS = clipPos;
attributes.texCoords = float2(texCoords[2 * index + 0], texCoords[2 * index + 1]);
attributes.vertexColor = float3(color[3 * index + 0], color[3 * index + 1], color[3 * index + 2]);
return attributes;
}
StructuredBuffer<float> positions;