forked from LeenkxTeam/LNXSDK
Update Files
This commit is contained in:
166
leenkx/Shaders/volumetric_light/volumetric_light.frag.glsl
Normal file
166
leenkx/Shaders/volumetric_light/volumetric_light.frag.glsl
Normal file
@ -0,0 +1,166 @@
|
||||
// http://sebastien.hillaire.free.fr/index.php?option=com_content&view=article&id=72&Itemid=106
|
||||
#version 450
|
||||
|
||||
#include "compiled.inc"
|
||||
#include "std/gbuffer.glsl"
|
||||
#include "std/shadows.glsl"
|
||||
#ifdef _Clusters
|
||||
#include "std/clusters.glsl"
|
||||
#endif
|
||||
#ifdef _Spot
|
||||
#include "std/light_common.glsl"
|
||||
#endif
|
||||
|
||||
uniform sampler2D gbufferD;
|
||||
uniform sampler2D snoise;
|
||||
|
||||
#ifdef _Clusters
|
||||
uniform vec4 lightsArray[maxLights * 3];
|
||||
#ifdef _Spot
|
||||
uniform vec4 lightsArraySpot[maxLights * 2];
|
||||
#endif
|
||||
uniform sampler2D clustersData;
|
||||
uniform vec2 cameraPlane;
|
||||
#endif
|
||||
|
||||
#ifdef _ShadowMap
|
||||
#ifdef _SinglePoint
|
||||
#ifdef _Spot
|
||||
uniform sampler2DShadow shadowMapSpot[1];
|
||||
uniform mat4 LWVPSpot[1];
|
||||
#else
|
||||
uniform samplerCubeShadow shadowMapPoint[1];
|
||||
uniform vec2 lightProj;
|
||||
#endif
|
||||
#endif
|
||||
#ifdef _Clusters
|
||||
uniform samplerCubeShadow shadowMapPoint[4];
|
||||
uniform vec2 lightProj;
|
||||
#ifdef _Spot
|
||||
uniform sampler2DShadow shadowMapSpot[4];
|
||||
uniform mat4 LWVPSpot[maxLightsCluster];
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef _Sun
|
||||
#ifdef _ShadowMap
|
||||
#ifdef _ShadowMapAtlas
|
||||
#ifndef _SingleAtlas
|
||||
uniform sampler2DShadow shadowMapAtlasSun;
|
||||
#else
|
||||
uniform sampler2DShadow shadowMapAtlas;
|
||||
#endif
|
||||
#else
|
||||
uniform sampler2DShadow shadowMap;
|
||||
#endif
|
||||
uniform float shadowsBias;
|
||||
#ifdef _CSM
|
||||
//!uniform vec4 casData[shadowmapCascades * 4 + 4];
|
||||
#else
|
||||
uniform mat4 LWVP;
|
||||
#endif
|
||||
#endif // _ShadowMap
|
||||
#endif
|
||||
|
||||
#ifdef _SinglePoint // Fast path for single light
|
||||
uniform vec3 pointPos;
|
||||
uniform vec3 pointCol;
|
||||
#ifdef _ShadowMap
|
||||
uniform float pointBias;
|
||||
#endif
|
||||
#ifdef _Spot
|
||||
uniform vec3 spotDir;
|
||||
uniform vec3 spotRight;
|
||||
uniform vec4 spotData;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
uniform vec2 cameraProj;
|
||||
uniform vec3 eye;
|
||||
uniform vec3 eyeLook;
|
||||
|
||||
in vec2 texCoord;
|
||||
in vec3 viewRay;
|
||||
out float fragColor;
|
||||
|
||||
const float tScat = 0.08;
|
||||
const float tAbs = 0.0;
|
||||
const float tExt = tScat + tAbs;
|
||||
const float stepLen = 1.0 / volumSteps;
|
||||
const float lighting = 0.4;
|
||||
|
||||
void rayStep(inout vec3 curPos, inout float curOpticalDepth, inout float scatteredLightAmount, float stepLenWorld, vec3 viewVecNorm) {
|
||||
curPos += stepLenWorld * viewVecNorm;
|
||||
const float density = 1.0;
|
||||
|
||||
float l1 = lighting * stepLenWorld * tScat * density;
|
||||
curOpticalDepth *= exp(-tExt * stepLenWorld * density);
|
||||
|
||||
float visibility = 0.0;
|
||||
vec4 lPos;
|
||||
|
||||
#ifdef _Sun
|
||||
#ifdef _CSM
|
||||
mat4 LWVP = mat4(casData[4], casData[4 + 1], casData[4 + 2], casData[4 + 3]);
|
||||
#endif
|
||||
lPos = LWVP * vec4(curPos, 1.0);
|
||||
lPos.xyz /= lPos.w;
|
||||
visibility = texture(
|
||||
#ifdef _ShadowMapAtlas
|
||||
#ifndef _SingleAtlas
|
||||
shadowMapAtlasSun
|
||||
#else
|
||||
shadowMapAtlas
|
||||
#endif
|
||||
#else
|
||||
shadowMap
|
||||
#endif
|
||||
, vec3(lPos.xy, lPos.z - shadowsBias));
|
||||
#endif
|
||||
|
||||
#ifdef _SinglePoint
|
||||
#ifdef _Spot
|
||||
lPos = LWVPSpot[0] * vec4(curPos, 1.0);
|
||||
visibility = shadowTest(shadowMapSpot[0], lPos.xyz / lPos.w, pointBias);
|
||||
visibility *= spotlightMask(normalize(pointPos - curPos), spotDir, spotRight, spotData.zw, spotData.x, spotData.y);
|
||||
#else
|
||||
vec3 ld = pointPos - curPos;
|
||||
visibility = PCFCube(shadowMapPoint[0], ld, -normalize(ld), pointBias, lightProj, vec3(0.0));
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef _Clusters
|
||||
#endif
|
||||
|
||||
scatteredLightAmount += curOpticalDepth * l1 * visibility;
|
||||
}
|
||||
|
||||
void main() {
|
||||
float pixelRayMarchNoise = textureLod(snoise, texCoord * 100, 0.0).r * 2.0 - 1.0;
|
||||
|
||||
float depth = textureLod(gbufferD, texCoord, 0.0).r * 2.0 - 1.0;
|
||||
vec3 p = getPos(eye, eyeLook, normalize(viewRay), depth, cameraProj);
|
||||
|
||||
vec3 viewVec = p - eye;
|
||||
float worldPosDist = length(viewVec);
|
||||
vec3 viewVecNorm = viewVec / worldPosDist;
|
||||
|
||||
float startDepth = 0.1;
|
||||
startDepth = min(worldPosDist, startDepth);
|
||||
float endDepth = 20.0;
|
||||
endDepth = min(worldPosDist, endDepth);
|
||||
|
||||
vec3 curPos = eye + viewVecNorm * startDepth;
|
||||
float stepLenWorld = stepLen * (endDepth - startDepth);
|
||||
float curOpticalDepth = exp(-tExt * stepLenWorld);
|
||||
float scatteredLightAmount = 0.0;
|
||||
|
||||
curPos += stepLenWorld * viewVecNorm * pixelRayMarchNoise;
|
||||
|
||||
for (float l = stepLen; l < 0.99999; l += stepLen) { // Do not do the first and last steps
|
||||
rayStep(curPos, curOpticalDepth, scatteredLightAmount, stepLenWorld, viewVecNorm);
|
||||
}
|
||||
|
||||
fragColor = scatteredLightAmount * volumAirTurbidity;
|
||||
}
|
||||
150
leenkx/Shaders/volumetric_light/volumetric_light.json
Normal file
150
leenkx/Shaders/volumetric_light/volumetric_light.json
Normal file
@ -0,0 +1,150 @@
|
||||
{
|
||||
"contexts": [
|
||||
{
|
||||
"name": "volumetric_light",
|
||||
"depth_write": false,
|
||||
"compare_mode": "always",
|
||||
"cull_mode": "none",
|
||||
"links": [
|
||||
{
|
||||
"name": "snoise",
|
||||
"link": "$blue_noise64.png"
|
||||
},
|
||||
{
|
||||
"name": "eye",
|
||||
"link": "_cameraPosition"
|
||||
},
|
||||
{
|
||||
"name": "eyeLook",
|
||||
"link": "_cameraLook"
|
||||
},
|
||||
{
|
||||
"name": "invVP",
|
||||
"link": "_inverseViewProjectionMatrix"
|
||||
},
|
||||
{
|
||||
"name": "cameraProj",
|
||||
"link": "_cameraPlaneProj"
|
||||
},
|
||||
{
|
||||
"name": "lightsArray",
|
||||
"link": "_lightsArray",
|
||||
"ifdef": ["_Clusters"]
|
||||
},
|
||||
{
|
||||
"name": "lightsArraySpot",
|
||||
"link": "_lightsArraySpot",
|
||||
"ifdef": ["_Clusters", "_Spot"]
|
||||
},
|
||||
{
|
||||
"name": "clustersData",
|
||||
"link": "_clustersData",
|
||||
"ifdef": ["_Clusters"]
|
||||
},
|
||||
{
|
||||
"name": "cameraPlane",
|
||||
"link": "_cameraPlane",
|
||||
"ifdef": ["_Clusters"]
|
||||
},
|
||||
{
|
||||
"name": "sunDir",
|
||||
"link": "_sunDirection",
|
||||
"ifdef": ["_Sun"]
|
||||
},
|
||||
{
|
||||
"name": "sunCol",
|
||||
"link": "_sunColor",
|
||||
"ifdef": ["_Sun"]
|
||||
},
|
||||
{
|
||||
"name": "shadowsBias",
|
||||
"link": "_sunShadowsBias",
|
||||
"ifdef": ["_Sun", "_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "LWVP",
|
||||
"link": "_biasLightWorldViewProjectionMatrixSun",
|
||||
"ifndef": ["_CSM"],
|
||||
"ifdef": ["_Sun", "_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "casData",
|
||||
"link": "_cascadeData",
|
||||
"ifdef": ["_Sun", "_ShadowMap", "_CSM"]
|
||||
},
|
||||
{
|
||||
"name": "smSizeUniform",
|
||||
"link": "_shadowMapSize",
|
||||
"ifdef": ["_SMSizeUniform"]
|
||||
},
|
||||
{
|
||||
"name": "lightProj",
|
||||
"link": "_lightPlaneProj",
|
||||
"ifdef": ["_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "pointPos",
|
||||
"link": "_pointPosition",
|
||||
"ifdef": ["_SinglePoint"]
|
||||
},
|
||||
{
|
||||
"name": "pointCol",
|
||||
"link": "_pointColor",
|
||||
"ifdef": ["_SinglePoint"]
|
||||
},
|
||||
{
|
||||
"name": "pointBias",
|
||||
"link": "_pointShadowsBias",
|
||||
"ifdef": ["_SinglePoint", "_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "spotDir",
|
||||
"link": "_spotDirection",
|
||||
"ifdef": ["_SinglePoint", "_Spot"]
|
||||
},
|
||||
{
|
||||
"name": "spotData",
|
||||
"link": "_spotData",
|
||||
"ifdef": ["_SinglePoint", "_Spot"]
|
||||
},
|
||||
{
|
||||
"name": "spotRight",
|
||||
"link": "_spotRight",
|
||||
"ifdef": ["_SinglePoint", "_Spot"]
|
||||
},
|
||||
{
|
||||
"name": "LWVPSpotArray",
|
||||
"link": "_biasLightWorldViewProjectionMatrixSpotArray",
|
||||
"ifdef": ["_Clusters", "_ShadowMap", "_Spot"]
|
||||
},
|
||||
{
|
||||
"name": "LWVPSpot[0]",
|
||||
"link": "_biasLightWorldViewProjectionMatrixSpot0",
|
||||
"ifndef": ["_ShadowMapAtlas"],
|
||||
"ifdef": ["_Spot", "_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "LWVPSpot[1]",
|
||||
"link": "_biasLightWorldViewProjectionMatrixSpot1",
|
||||
"ifndef": ["_ShadowMapAtlas"],
|
||||
"ifdef": ["_Spot", "_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "LWVPSpot[2]",
|
||||
"link": "_biasLightWorldViewProjectionMatrixSpot2",
|
||||
"ifndef": ["_ShadowMapAtlas"],
|
||||
"ifdef": ["_Spot", "_ShadowMap"]
|
||||
},
|
||||
{
|
||||
"name": "LWVPSpot[3]",
|
||||
"link": "_biasLightWorldViewProjectionMatrixSpot3",
|
||||
"ifndef": ["_ShadowMapAtlas"],
|
||||
"ifdef": ["_Spot", "_ShadowMap"]
|
||||
}
|
||||
],
|
||||
"texture_params": [],
|
||||
"vertex_shader": "../include/pass_viewray.vert.glsl",
|
||||
"fragment_shader": "volumetric_light.frag.glsl"
|
||||
}
|
||||
]
|
||||
}
|
||||
Reference in New Issue
Block a user