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add floodfill light propagation in vl fog. fix up nether and end shaders. tweaked shadows some. improved filtering for shadows/ssao, and VL fog. improved the "clouds intersect terrain" setting

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Xonk
2024-06-19 21:44:21 -04:00
parent afe1a2f30e
commit 56ad3b059d
33 changed files with 843 additions and 771 deletions
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77
shaders/lib/Shadow_Params.glsl
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@ -1,8 +1,16 @@
uniform float far;
uniform int dhRenderDistance;
const float k = 1.8;
const float d0 = 0.04 + max(64.0 - shadowDistance, 0.0)/64.0 * 0.26;
const float d0 = 0.04 + max(64.0 - shadowDistance, 0.0)/64.0 * 0.26;
const float d1 = 0.61;
float a = exp(d0);
float b = (exp(d1)-a)*150./128.0;
// thank you Espen
#ifdef DISTANT_HORIZONS_SHADOWMAP
float b = (exp(d1)-a)*min(dhRenderDistance, shadowDistance)/shadowDistance;
#else
float b = (exp(d1)-a)*min(far+16.0*3.5, shadowDistance)/shadowDistance;
#endif
vec4 BiasShadowProjection(in vec4 projectedShadowSpacePosition) {
@ -13,67 +21,4 @@ vec4 BiasShadowProjection(in vec4 projectedShadowSpacePosition) {
float calcDistort(vec2 worldpos){
return 1.0/(log(length(worldpos)*b+a)*k);
}
uniform float far;
/*
mat4 BuildOrthoProjectionMatrix(const in float width, const in float height, const in float zNear, const in float zFar) {
return mat4(
vec4(2.0 / width, 0.0, 0.0, 0.0),
vec4(0.0, 2.0 / height, 0.0, 0.0),
vec4(0.0, 0.0, -2.0 / (zFar - zNear), 0.0),
vec4(0.0, 0.0, -(zFar + zNear)/(zFar - zNear), 1.0));
}
mat4 BuildTranslationMatrix(const in vec3 delta) {
return mat4(
vec4(1.0, 0.0, 0.0, 0.0),
vec4(0.0, 1.0, 0.0, 0.0),
vec4(0.0, 0.0, 1.0, 0.0),
vec4(delta, 1.0));
}
uniform vec3 CamPos;
// vec3 LightDir = vec3(1.0, 0.5, 1.0);
float rate = frameTimeCounter;
vec3 LightDir = vec3(sin(rate), 0.3, cos(rate));
// vec3 LightDir = vec3(cos(rate),sin(rate),cos(rate));
const float shadowIntervalSize = 2.0f;
vec3 GetShadowIntervalOffset() {
return fract(CamPos / shadowIntervalSize) * shadowIntervalSize - vec3(3,0,1);
}
mat4 BuildShadowViewMatrix(const in vec3 localLightDir) {
const vec3 worldUp = vec3(1, 0, 0);
vec3 zaxis = localLightDir;
// float check = localLightDir.y;
// if(check < 0.0) zaxis.y = -zaxis.y;
vec3 xaxis = normalize(cross(worldUp, zaxis));
vec3 yaxis = normalize(cross(zaxis, xaxis));
mat4 shadowModelViewEx = mat4(1.0);
shadowModelViewEx[0].xyz = vec3(xaxis.x, yaxis.x, zaxis.x);
shadowModelViewEx[1].xyz = vec3(xaxis.y, yaxis.y, zaxis.y);
shadowModelViewEx[2].xyz = vec3(xaxis.z, yaxis.z, zaxis.z);
vec3 intervalOffset = GetShadowIntervalOffset();
mat4 translation = BuildTranslationMatrix(intervalOffset);
return shadowModelViewEx * translation;
}
mat4 BuildShadowProjectionMatrix() {
float maxDist = min(shadowDistance, far);
return BuildOrthoProjectionMatrix(maxDist, maxDist, -far, far);
}
// mat4 Custom_ViewMatrix = BuildShadowViewMatrix(LightDir);
// mat4 Custom_ProjectionMatrix = BuildShadowProjectionMatrix();
*/
}