initial implementation of DoF

This commit is contained in:
Valerie Wolfe 2024-04-14 13:28:52 -04:00
parent cb51b3ca58
commit aab1ed34ab
4 changed files with 29 additions and 4 deletions

View file

@ -1,5 +1,7 @@
#version 120
#define pixelSize 2 // the size of pixels [1 2 4 8 16]
#define dithering // whether or not to apply dithering
#define colorMode 0 // hsv/rgb [0 1]
@ -9,14 +11,14 @@
#define rgbSteps 4 // the number of rgb values to use [2 4 8 16 32 64]
#define pixelSize 2 // the size of pixels [1 2 4 8 16]
uniform sampler2D gcolor;
uniform sampler2D colortex1;
uniform float viewWidth, viewHeight;
varying vec2 texcoord;
#include "/module/dof.frag"
// All components are in the range [0…1], including hue.
vec3 rgb2hsv(vec3 c)
{
@ -116,7 +118,9 @@ float dither(float color, float dithersteps) {
void main() {
// adjust texture coordinate based on pixel size if needed
vec2 newcoord = texcoord;
#if pixelSize > 1
#ifdef dof
newcoord = depthOfField();
#elif pixelSize > 1
vec2 view = vec2(viewWidth, viewHeight) / float(pixelSize);
float offset = (ceil(pixelSize * 0.5) - 0.5) / float(pixelSize);
newcoord = (floor(newcoord * view) + offset) / view;

View file

@ -36,6 +36,8 @@ option.tWarp=Texture Warping
option.tWarp.comment=Emulates affine texture mapping responsible for warping textures on the PSX
screen.FX=FX
option.dof=Depth of Field
option.dof.comment=Downscale out-of-focus objects
option.worldCurvature=World Curvature
value.worldCurvature.0=Off
value.worldCurvature.1=Chunk

19
shaders/module/dof.frag Normal file
View file

@ -0,0 +1,19 @@
//#define dof
uniform float centerDepthSmooth;
uniform sampler2D depthtex1;
const float centerDepthSmoothHalfLife = 16f;
vec2 depthOfField() {
float depth = texture2D(depthtex1, texcoord).x;
float distance = depth - centerDepthSmooth;
int stops = min(int(distance * 96), 5);
float virtualSize = pow(float(pixelSize), 1 + stops);//1 + stops);
vec2 view = vec2(viewWidth, viewHeight) / virtualSize;
float offset = (ceil(virtualSize * 0.5) - 0.5) / virtualSize;
return (floor(texcoord * view) + offset) / view;
}

View file

@ -19,7 +19,7 @@ screen.COLOR=colorMode dithering <empty> rgbSteps <empty> <empty> hueSteps satSt
screen.PSX=vWarp tWarp
# fx
screen.FX=worldCurvature
screen.FX=dof worldCurvature
# -- CONDITIONALS --
gbuffers_hand.enabled=tWarp