Lightling
8c103bb3f9
- standard+toon w/o albedo - toon emission - emission as a color - standard+toon alpha+cutoff values (toon looks weird because of rim lighting at the moment)
117 lines
No EOL
2.9 KiB
HLSL
117 lines
No EOL
2.9 KiB
HLSL
#include "Defines.hlsli"
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#include "Helpers.hlsli"
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#include "Lights.hlsli"
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#define MAX_LIGHTS 128
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cbuffer ExternalData : register(b0)
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{
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float3 cameraPosition;
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int hasNormalMap;
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float2 offset;
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float2 scale;
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float3 ambient;
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float lightCount;
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float3 tint;
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int hasAlbedoMap;
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float3 emitAmount;
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int hasEmissiveMap;
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float alpha;
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float cutoff;
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float roughness;
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int hasSpecularMap;
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Light lights[MAX_LIGHTS];
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}
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Texture2D Albedo : register(t0);
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Texture2D Specular : register(t1);
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Texture2D Normal : register(t2);
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Texture2D Emissive : register(t3);
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Texture2D RampDiffuse : register(t4);
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Texture2D RampSpecular : register(t5);
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SamplerState BasicSampler : register(s0);
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float GetRampDiffuse(float original)
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{
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if (original < 0.25f) return 0.0f;
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//if (original < 0.5f) return 0.5f;
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if (original < 0.75f) return 0.75f;
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return 1;
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}
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float GetRampSpecular(float original)
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{
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if (original < 0.6f) return 0.0f;
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return 1.0f;
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}
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float4 main(VertexToPixel input) : SV_TARGET
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{
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input.normal = normalize(input.normal);
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input.tangent = normalize(input.tangent);
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input.uv = input.uv * scale + offset;
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float3 view = getView(cameraPosition, input.worldPosition);
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float3 normal = input.normal;
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float3 surface = tint;
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float alphaValue = alpha;
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if (hasAlbedoMap)
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{
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float4 sampledAlbedo = Albedo.Sample(BasicSampler, input.uv);
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if (sampledAlbedo.a < cutoff) discard;
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float3 albedo = pow(sampledAlbedo.rgb, 2.2f);
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surface *= albedo.rgb;
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alphaValue *= sampledAlbedo.a;
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}
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if (hasNormalMap > 0)
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{
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float3 unpackedNormal = Normal.Sample(BasicSampler, input.uv).rgb * 2 - 1;
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float3 T = normalize(input.tangent - input.normal * dot(input.tangent, input.normal));
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float3 B = cross(T, input.normal);
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float3x3 TBN = float3x3(T, B, input.normal);
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normal = mul(unpackedNormal, TBN);
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}
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float specularValue = 1;
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if (hasSpecularMap > 0)
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{
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specularValue = Specular.Sample(BasicSampler, input.uv).r;
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}
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float3 light = ambient * surface;
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for (int i = 0; i < lightCount; i++)
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{
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float3 toLight = float3(0, 0, 0);
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float attenuate = 1;
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switch (lights[i].Type)
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{
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case LIGHT_TYPE_DIRECTIONAL:
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toLight = normalize(lights[i].Direction);
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break;
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case LIGHT_TYPE_POINT:
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toLight = normalize(lights[i].Position - input.worldPosition);
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attenuate = getAttenuation(lights[i].Position, input.worldPosition, lights[i].Range);
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break;
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}
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float diffuse = GetRampDiffuse(getDiffuse(normal, toLight));
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float specular = GetRampSpecular(calculateSpecular(normal, toLight, view, specularValue, diffuse) * roughness);
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light += (diffuse * surface.rgb + specular) * attenuate * lights[i].Intensity * lights[i].Color;
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}
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float3 emit = float3(1, 1, 1);
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if (hasEmissiveMap > 0) emit = Emissive.Sample(BasicSampler, input.uv).rgb;
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float4 rim = GetRampSpecular((1 - dot(view, input.normal)) * pow(light, 0.075f));
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float3 final = float3(light + rim + (emit * emitAmount));
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return float4(pow(final, 1.0f / 2.2f), alphaValue);
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} |