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delete postprocessing

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mcrcortex
2025-08-18 00:48:49 +10:00
parent 33d50aed67
commit 3b113e4914
1 changed files with 0 additions and 201 deletions
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src/main/java/me/cortex/voxy/client/core/rendering/post/PostProcessing.java
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package me.cortex.voxy.client.core.rendering.post;
import me.cortex.voxy.client.config.VoxyConfig;
import me.cortex.voxy.client.core.gl.GlFramebuffer;
import me.cortex.voxy.client.core.gl.GlTexture;
import me.cortex.voxy.client.core.gl.shader.Shader;
import me.cortex.voxy.client.core.gl.shader.ShaderType;
import me.cortex.voxy.client.core.rendering.Viewport;
import me.cortex.voxy.client.core.rendering.util.GlStateCapture;
import org.joml.Matrix4f;
import org.joml.Matrix4fc;
import static org.lwjgl.opengl.ARBComputeShader.glDispatchCompute;
import static org.lwjgl.opengl.ARBShaderImageLoadStore.glBindImageTexture;
import static org.lwjgl.opengl.GL15.GL_READ_WRITE;
import static org.lwjgl.opengl.GL20.glUniformMatrix4fv;
import static org.lwjgl.opengl.GL30C.*;
import static org.lwjgl.opengl.GL43.GL_DEPTH_STENCIL_TEXTURE_MODE;
import static org.lwjgl.opengl.GL45C.*;
public class PostProcessing {
private final boolean useEnvFog = VoxyConfig.CONFIG.useEnvironmentalFog;
private final GlFramebuffer framebuffer;
private final GlFramebuffer framebufferSSAO;
private int width;
private int height;
private GlTexture colour;
private GlTexture colourSSAO;
private GlTexture depthStencil;
private boolean didSSAO;
private final FullscreenBlit setDepth0 = new FullscreenBlit("voxy:post/depth0.frag");
private final FullscreenBlit emptyBlit = new FullscreenBlit("voxy:post/noop.frag");
//private final FullscreenBlit blitTexture = new FullscreenBlit("voxy:post/blit_texture_cutout.frag");
private final FullscreenBlit blitTexture = new FullscreenBlit("voxy:post/blit_texture_depth_cutout.frag",
a->a.defineIf("USE_ENV_FOG", useEnvFog).define("EMIT_COLOUR"));
private final Shader ssaoComp = Shader.make()
.add(ShaderType.COMPUTE, "voxy:post/ssao.comp")
.compile();
private final GlStateCapture glStateCapture = GlStateCapture.make()
.addCapability(GL_STENCIL_TEST)
.addCapability(GL_DEPTH_TEST)
.addTexture(GL_TEXTURE0)
.addTexture(GL_TEXTURE1)
.addTexture(GL_TEXTURE2)
.build();
public PostProcessing() {
this.framebuffer = new GlFramebuffer();
this.framebufferSSAO = new GlFramebuffer();
}
public void setSize(int width, int height) {
if (this.width != width || this.height != height) {
this.width = width;
this.height = height;
if (this.colour != null) {
if (this.colourSSAO != null) {
this.colourSSAO.free();
}
this.colour.free();
this.depthStencil.free();
}
this.colour = new GlTexture().store(GL_RGBA8, 1, width, height);
this.colourSSAO = new GlTexture().store(GL_RGBA8, 1, width, height);
this.depthStencil = new GlTexture().store(GL_DEPTH24_STENCIL8, 1, width, height);
glTextureParameterf(this.colour.id, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTextureParameterf(this.colour.id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTextureParameterf(this.colourSSAO.id, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTextureParameterf(this.colourSSAO.id, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTextureParameterf(this.depthStencil.id, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_DEPTH_COMPONENT);
this.framebuffer.bind(GL_COLOR_ATTACHMENT0, this.colour)
.bind(GL_DEPTH_STENCIL_ATTACHMENT, this.depthStencil)
.verify();
this.framebufferSSAO.bind(GL_COLOR_ATTACHMENT0, this.colourSSAO)
.bind(GL_DEPTH_STENCIL_ATTACHMENT, this.depthStencil)
.verify();
}
}
public void shutdown() {
this.framebuffer.free();
this.framebufferSSAO.free();
if (this.colourSSAO != null) this.colourSSAO.free();
if (this.colour != null) this.colour.free();
if (this.depthStencil != null) this.depthStencil.free();
this.emptyBlit.delete();
this.setDepth0.delete();
this.blitTexture.delete();
this.ssaoComp.free();
}
public void setup(int width, int height, int sourceFB) {
//TODO: use the raw depth texture instead
//TODO: when blitting, also set the depth value of where the mask is created to 0 (I.E. closest to the camera)
// cause of hiz computing, it makes alot of sections visible
this.didSSAO = false;
this.glStateCapture.capture();
this.setSize(width, height);
glBindFramebuffer(GL_FRAMEBUFFER, this.framebuffer.id);
//glClearColor(0,0,0,0);//TODO: RESTORE THIS TO THE ORIGINAL VALUE
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glBlitNamedFramebuffer(sourceFB, this.framebuffer.id, 0,0, width, height, 0,0, width, height, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
//Create a stencil mask of terrain generated by minecraft
glEnable(GL_STENCIL_TEST);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
glStencilFunc(GL_ALWAYS, 1, 0xFF);
glStencilMask(0xFF);
glEnable(GL_DEPTH_TEST);
glDepthMask(false);
glColorMask(false,false,false,false);
this.emptyBlit.blit();
glDepthMask(true);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
//Set depth to 0 w.r.t mask
glStencilFunc(GL_EQUAL, 0, 0xFF);
this.setDepth0.blit();
glDisable(GL_DEPTH_TEST);
glColorMask(true,true,true,true);
//Make voxy terrain render only where there isnt mc terrain
glStencilFunc(GL_EQUAL, 1, 0xFF);
//TODO: need to figure out how to do translucency cause doing it normally will cause water to have double translucency (i think)
}
//Computes ssao on the current framebuffer data and updates it
// this means that translucency wont be effected etc
public void computeSSAO(Matrix4f mvp) {
this.didSSAO = true;
this.ssaoComp.bind();
float[] data = new float[4*4];
mvp.get(data);
glUniformMatrix4fv(3, false, data);//MVP
mvp.invert(new Matrix4f()).get(data);
glUniformMatrix4fv(4, false, data);//invMVP
glBindImageTexture(0, this.colourSSAO.id, 0, false,0, GL_READ_WRITE, GL_RGBA8);
glBindTextureUnit(1, this.depthStencil.id);
glBindTextureUnit(2, this.colour.id);
glDispatchCompute((this.width+31)/32, (this.height+31)/32, 1);
glBindFramebuffer(GL_FRAMEBUFFER, this.framebufferSSAO.id);
}
//Executes the post processing and emits to whatever framebuffer is currently bound via a blit
public void renderPost(Viewport vp, Matrix4fc tooProjection, int outputFB) {
glDisable(GL_STENCIL_TEST);
glBindFramebuffer(GL_FRAMEBUFFER, outputFB);
//This will need to be replaced with a blit shader to raster with respect to the stencil
//glBlitNamedFramebuffer(this.framebuffer.id, outputFB, 0,0, this.width, this.height, 0,0, this.width, this.height, GL_COLOR_BUFFER_BIT, GL_NEAREST);
this.blitTexture.bind();
float[] data = new float[4*4];
new Matrix4f(vp.MVP).invert().get(data);
glUniformMatrix4fv(1, false, data);//inverse fromProjection
new Matrix4f(tooProjection).mul(vp.modelView).get(data);
glUniformMatrix4fv(2, false, data);//tooProjection
if (useEnvFog) {
float start = vp.fogParameters.environmentalStart();
float end = vp.fogParameters.environmentalEnd();
float invEndFogDelta = 1f/(end-start);
glUniform3f(4, vp.fogParameters.environmentalEnd()/2f, invEndFogDelta, start*invEndFogDelta);
glUniform3f(5, vp.fogParameters.red(), vp.fogParameters.green(), vp.fogParameters.blue());
}
glBindTextureUnit(0, this.depthStencil.id);
glBindTextureUnit(3, this.didSSAO?this.colourSSAO.id:this.colour.id);
//glTextureParameteri(this.depthStencil.id, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_DEPTH_COMPONENT);
glEnable(GL_DEPTH_TEST);
glDepthMask(true);
this.blitTexture.blit();
glDisable(GL_DEPTH_TEST);
glDepthMask(true);
this.glStateCapture.restore();
}
}