public static (string name, string lightMode) NameAndLightMode(this ShaderPassType pass, RenderPipeline rp)
{
switch (pass)
{
case ShaderPassType.Render:
switch (rp)
{
case RenderPipeline.URP: return("Pass", "SRPDefaultUnlit");
case RenderPipeline.HDRP: return("ForwardOnly", "ForwardOnly");
default: throw new ArgumentOutOfRangeException(nameof(rp), rp, null);
}
case ShaderPassType.Picking: return("Picking", "Picking");
case ShaderPassType.Selection: return("Selection", "SceneSelectionPass");
case ShaderPassType.DepthOnly:
switch (rp)
{
case RenderPipeline.URP: return("DepthOnly", "DepthOnly");
case RenderPipeline.HDRP: return("DepthForwardOnly", "DepthForwardOnly");
default: throw new ArgumentOutOfRangeException(nameof(rp), rp, null);
}
default: throw new ArgumentOutOfRangeException(nameof(pass), pass, null);
}
}
void AppendPass(ShaderPassType pass, RenderPipeline rp)
{
using (Scope("Pass")) {
// Name & LightMode
bool isLegacyMainRenderPass = rp == RenderPipeline.Legacy && pass == ShaderPassType.Render;
if (isLegacyMainRenderPass == false)
{
(string passName, string lightMode) = pass.NameAndLightMode(rp);
AppendLine($"Name \"{passName}\"");
AppendLine("Tags { " + (ShaderTag)("LightMode", lightMode) + " }");
}
using (Scope("Stencil")) {
AppendLine("Comp [_StencilComp]");
AppendLine("Pass [_StencilOpPass]");
AppendLine("Ref [_StencilID]");
AppendLine("ReadMask [_StencilReadMask]");
AppendLine("WriteMask [_StencilWriteMask]");
}
// culling/blend mode
if (pass == ShaderPassType.Render)
{
AppendLines(blendMode.GetPassRenderStates());
}
else
{
AppendLine("Cull Off"); // todo: might be incorrect for DepthOnly
}
// hlsl program
AppendHlslProgram(pass, rp);
}
}
public void AppendCGPROGRAM(ShaderPassType passType)
{
AppendLine("CGPROGRAM");
indentLevel++;
AppendLine("#pragma vertex vert");
AppendLine("#pragma fragment frag");
AppendLine("#pragma multi_compile_instancing");
if (shaderKeywords.ContainsKey(shaderName))
{
AppendLines(shaderKeywords[shaderName].Select(x => x.ToString()));
}
AppendLine($"#define {blendMode.BlendShaderDefine()}");
if (passType == ShaderPassType.Picking || passType == ShaderPassType.Selection)
{
AppendLine("#pragma instancing_options assumeuniformscaling nomatrices nolightprobe nolightmap");
if (passType == ShaderPassType.Picking)
{
AppendLine("#define SCENE_VIEW_PICKING");
}
else if (passType == ShaderPassType.Selection)
{
AppendLine("#define SCENE_VIEW_OUTLINE_MASK");
}
}
AppendLine($"#include \"../../Core/{shaderName} Core.cginc\"");
indentLevel--;
AppendLine("ENDCG");
}
void AppendHlslProgram(ShaderPassType passType, RenderPipeline rp)
{
AppendLine("HLSLPROGRAM");
indentLevel++;
AppendLine("#pragma vertex vert");
AppendLine("#pragma fragment frag");
AppendLine("#pragma multi_compile_instancing");
if (rp != RenderPipeline.Legacy)
{
AppendLine("#pragma prefer_hlslcc gles");
AppendLine("#pragma exclude_renderers d3d11_9x");
AppendLine("#pragma target 2.0");
}
if (shaderKeywords.ContainsKey(shaderName))
{
AppendLines(shaderKeywords[shaderName].Select(x => x.ToString()));
}
AppendLine($"#define {blendMode.BlendShaderDefine()}");
if (passType == ShaderPassType.Picking || passType == ShaderPassType.Selection)
{
AppendLine("#pragma instancing_options assumeuniformscaling nomatrices nolightprobe nolightmap");
if (passType == ShaderPassType.Picking)
{
AppendLine("#define SCENE_VIEW_PICKING");
}
else if (passType == ShaderPassType.Selection)
{
AppendLine("#define SCENE_VIEW_OUTLINE_MASK");
}
}
AppendLine($"#include \"../../Core/{shaderName} Core.cginc\"");
indentLevel--;
AppendLine("ENDHLSL");
}