forked from LeenkxTeam/LNXSDK
Converted rendering engine to reverse-z
This commit is contained in:
TriVoxel
@ -21,10 +21,18 @@ uniform float envmapStrength;
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#include "std/shirr.glsl"
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#endif
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#include "std/environment_sample.glsl"
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#include "std/light.glsl"
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uniform sampler2D gbufferD;
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uniform sampler2D gbuffer0;
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uniform sampler2D gbuffer1;
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// Gbuffer
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//uniform sampler2D depthtex; // Raw depth
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uniform sampler2D gbufferD; // Depth (cheap)
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uniform sampler2D gbuffer0; // Normal/Metal
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uniform sampler2D gbuffer1; // Albedo
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uniform vec2 cameraProj;
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uniform vec3 eye;
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uniform vec3 eyeLook;
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uniform mat4 invVP;
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#ifdef _gbuffer2
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uniform sampler2D gbuffer2;
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@ -65,11 +73,6 @@ uniform sampler2D ssaotex;
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uniform vec2 lightPlane;
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#endif
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#ifdef _SSRS
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//!uniform mat4 VP;
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uniform mat4 invVP;
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#endif
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#ifdef _LightIES
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//!uniform sampler2D texIES;
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#endif
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@ -99,10 +102,6 @@ uniform mat4 invVP;
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#endif
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#endif
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uniform vec2 cameraProj;
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uniform vec3 eye;
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uniform vec3 eyeLook;
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#ifdef _Clusters
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uniform vec4 lightsArray[maxLights * 3];
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#ifdef _Spot
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@ -204,6 +203,7 @@ in vec3 viewRay;
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out vec4 fragColor;
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void main() {
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fragColor = vec4(0.0);
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vec4 g0 = textureLod(gbuffer0, texCoord, 0.0); // Normal.xy, roughness, metallic/matid
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vec3 n;
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@ -218,14 +218,22 @@ void main() {
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vec4 g1 = textureLod(gbuffer1, texCoord, 0.0); // Basecolor.rgb, spec/occ
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vec2 occspec = unpackFloat2(g1.a);
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vec3 albedo = surfaceAlbedo(g1.rgb, metallic); // g1.rgb - basecolor
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vec3 albedo = surfaceAlbedo(g1.rgb, metallic); // g1.rgb - basecolor
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vec3 f0 = surfaceF0(g1.rgb, metallic);
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vec3 envl = vec3(0.0);
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float depth = textureLod(gbufferD, texCoord, 0.0).r * 2.0 - 1.0;
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vec3 p = getPos(eye, eyeLook, normalize(viewRay), depth, cameraProj);
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vec3 v = normalize(eye - p);
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float dotNV = max(dot(n, v), 0.0);
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// world-space position:
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float rawDepth = textureLod(gbufferD, texCoord, 0.0).r;
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float clipZ = rawDepth * 2.0 - 1.0; // depth -> clip-space
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vec4 clipPos = vec4(texCoord * 2.0 - 1.0, clipZ, 1.0);
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vec4 worldPos = invVP * clipPos;
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vec3 p = worldPos.xyz / worldPos.w;
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vec3 v = normalize(eye - p);
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float dotNV = max(dot(n, v), 0.0);
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// view-space vector for reflection
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vec3 viewPos = getPosView(viewRay, rawDepth, cameraProj);
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vec3 viewDir = normalize(-viewPos);
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#ifdef _gbuffer2
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vec4 g2 = textureLod(gbuffer2, texCoord, 0.0);
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@ -252,12 +260,6 @@ void main() {
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fragColor.rgb += ambient * ambientIntensity;
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#endif
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#ifndef _SSR
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// Only apply specular environment lighting if SSR is NOT active
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vec3 envSpecular = sampleSpecularEnvironment(reflect(viewDir, normal), roughness);
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finalColor.rgb += envSpecular * environmentIntensity;
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#endif
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#ifdef _Rad
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vec3 reflectionWorld = reflect(-v, n);
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float lod = getMipFromRoughness(roughness, envmapNumMipmaps);
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@ -298,28 +300,37 @@ void main() {
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envl.rgb *= textureLod(voxels_ao, texCoord, 0.0).r;
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#endif
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// if voxel GI isn't enabled, we fall back to SSR (SSR also processes indirect)
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#ifndef _VoxelGI
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fragColor.rgb = envl;
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fragColor.rgb += envl;
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#ifndef _SSR
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// if SSR is disabled, we fallback to simple environment texture
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vec3 fallbackEnvColor = sampleSpecularEnvironment(reflect(viewDir, n), roughness);
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fragColor.rgb += fallbackEnvColor;
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#endif
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#endif
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// Show voxels
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// vec3 origin = vec3(texCoord * 2.0 - 1.0, 0.99);
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// vec3 direction = vec3(0.0, 0.0, -1.0);
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// vec4 color = vec4(0.0f);
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// for(uint step = 0; step < 400 && color.a < 0.99f; ++step) {
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// vec3 point = origin + 0.005 * step * direction;
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// color += (1.0f - color.a) * textureLod(voxels, point * 0.5 + 0.5, 0);
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// }
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// fragColor.rgb += color.rgb;
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// Show SSAO
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// fragColor.rgb = texture(ssaotex, texCoord).rrr;
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// show voxel GI
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#ifdef _VoxelGI
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// Show voxels
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vec3 origin = vec3(texCoord * 2.0 - 1.0, 0.99);
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vec3 direction = vec3(0.0, 0.0, -1.0);
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vec4 color = vec4(0.0f);
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for(uint step = 0; step < 400 && color.a < 0.99f; ++step) {
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vec3 point = origin + 0.005 * step * direction;
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color += (1.0f - color.a) * textureLod(voxels, point * 0.5 + 0.5, 0);
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}
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fragColor.rgb += color.rgb;
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#endif
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// show SSAO
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#ifdef _SSAO
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// #ifdef _RTGI
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// fragColor.rgb *= textureLod(ssaotex, texCoord, 0.0).rgb;
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// #else
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fragColor.rgb *= textureLod(ssaotex, texCoord, 0.0).r;
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// #endif
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fragColor.rgb = texture(ssaotex, texCoord).rrr;
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// #ifdef _RTGI
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// fragColor.rgb *= textureLod(ssaotex, texCoord, 0.0).rgb;
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// #else
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fragColor.rgb *= textureLod(ssaotex, texCoord, 0.0).r;
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// #endif
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#endif
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#ifdef _EmissionShadeless
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@ -467,7 +478,8 @@ void main() {
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#endif
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#ifdef _Clusters
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float viewz = linearize(depth * 0.5 + 0.5, cameraProj);
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// compute linear depth for clustering directly from the reconstructed view-space pos:
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float viewz = length(viewPos);
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int clusterI = getClusterI(texCoord, viewz, cameraPlane);
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int numLights = int(texelFetch(clustersData, ivec2(clusterI, 0), 0).r * 255);
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@ -511,6 +523,7 @@ void main() {
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#ifdef _MicroShadowing
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, occspec.x
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#endif
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// TODO: Cleanup. Probably broken
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#ifdef _SSRS
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, gbufferD, invVP, eye
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#endif
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