/*
* Copyright 2013 MovingBlocks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.terasology.rendering.shader;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;
import org.lwjgl.opengl.GL13;
import org.terasology.asset.Assets;
import org.terasology.config.Config;
import org.terasology.editor.EditorRange;
import org.terasology.registry.CoreRegistry;
import org.terasology.input.cameraTarget.CameraTargetSystem;
import org.terasology.rendering.assets.material.Material;
import org.terasology.rendering.assets.texture.Texture;
import org.terasology.rendering.cameras.Camera;
import org.terasology.rendering.opengl.DefaultRenderingProcess;
import org.terasology.rendering.world.WorldRenderer;
import org.terasology.utilities.random.FastRandom;
import org.terasology.utilities.random.Random;
import static org.lwjgl.opengl.GL11.glBindTexture;
/**
* Shader parameters for the Post-processing shader program.
*
* @author Benjamin Glatzel <benjamin.glatzel@me.com>
*/
public class ShaderParametersPost extends ShaderParametersBase {
private Random rand = new FastRandom();
@EditorRange(min = 0.0f, max = 1.0f)
private float filmGrainIntensity = 0.025f;
@EditorRange(min = 0.0f, max = 1.0f)
private float blurStart;
@EditorRange(min = 0.0f, max = 1.0f)
private float blurLength = 0.15f;
@Override
public void applyParameters(Material program) {
super.applyParameters(program);
CameraTargetSystem cameraTargetSystem = CoreRegistry.get(CameraTargetSystem.class);
int texId = 0;
GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
DefaultRenderingProcess.getInstance().bindFboTexture("sceneToneMapped");
program.setInt("texScene", texId++, true);
if (CoreRegistry.get(Config.class).getRendering().getBlurIntensity() != 0) {
GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
DefaultRenderingProcess.getInstance().getFBO("sceneBlur1").bindTexture();
program.setInt("texBlur", texId++, true);
if (cameraTargetSystem != null) {
program.setFloat("blurFocusDistance", cameraTargetSystem.getFocalDistance(), true);
}
program.setFloat("blurStart", blurStart, true);
program.setFloat("blurLength", blurLength, true);
}
Texture colorGradingLut = Assets.getTexture("engine:colorGradingLut1");
if (colorGradingLut != null) {
GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
glBindTexture(GL12.GL_TEXTURE_3D, colorGradingLut.getId());
program.setInt("texColorGradingLut", texId++, true);
}
DefaultRenderingProcess.FBO sceneCombined = DefaultRenderingProcess.getInstance().getFBO("sceneOpaque");
if (sceneCombined != null) {
GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
sceneCombined.bindDepthTexture();
program.setInt("texDepth", texId++, true);
Texture filmGrainNoiseTexture = Assets.getTexture("engine:noise");
if (CoreRegistry.get(Config.class).getRendering().isFilmGrain()) {
GL13.glActiveTexture(GL13.GL_TEXTURE0 + texId);
glBindTexture(GL11.GL_TEXTURE_2D, filmGrainNoiseTexture.getId());
program.setInt("texNoise", texId++, true);
program.setFloat("grainIntensity", filmGrainIntensity, true);
program.setFloat("noiseOffset", rand.nextFloat(), true);
program.setFloat2("noiseSize", filmGrainNoiseTexture.getWidth(), filmGrainNoiseTexture.getHeight(), true);
program.setFloat2("renderTargetSize", sceneCombined.width, sceneCombined.height, true);
}
}
Camera activeCamera = CoreRegistry.get(WorldRenderer.class).getActiveCamera();
if (activeCamera != null && CoreRegistry.get(Config.class).getRendering().isMotionBlur()) {
program.setMatrix4("invViewProjMatrix", activeCamera.getInverseViewProjectionMatrix(), true);
program.setMatrix4("prevViewProjMatrix", activeCamera.getPrevViewProjectionMatrix(), true);
}
}
}