com.grillecube.engine.renderer.world.ProgramMVP.java Source code

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Here is the source code for com.grillecube.engine.renderer.world.ProgramMVP.java

Source

/**
**   This file is part of the project https://github.com/toss-dev/VoxelEngine
**
**   License is available here: https://raw.githubusercontent.com/toss-dev/VoxelEngine/master/LICENSE.md
**
**   PEREIRA Romain
**                                       4-----7          
**                                      /|    /|
**                                     0-----3 |
**                                     | 5___|_6
**                                     |/    | /
**                                     1-----2
*/

package com.grillecube.engine.renderer.world;

import org.lwjgl.opengl.GL20;

import com.grillecube.engine.maths.Matrix4f;
import com.grillecube.engine.opengl.GLH;
import com.grillecube.engine.opengl.object.GLProgram;
import com.grillecube.engine.renderer.camera.CameraProjective;
import com.grillecube.engine.resources.R;
import com.grillecube.engine.world.World;

public class ProgramMVP extends GLProgram {
    public static final int ATTR_POS = 0;

    private int _mvp_matrix;
    private int _transf_matrix;
    private int _color;

    private int _fog_color;
    private int _fog_density;
    private int _fog_gradient;

    public ProgramMVP() {
        super();
        this.addShader(GLH.glhLoadShader(R.getResPath("shaders/mvp.fs"), GL20.GL_FRAGMENT_SHADER));
        this.addShader(GLH.glhLoadShader(R.getResPath("shaders/mvp.vs"), GL20.GL_VERTEX_SHADER));
        this.link();
    }

    @Override
    public void bindAttributes() {
        super.bindAttribute(ATTR_POS, "position");
    }

    @Override
    public void linkUniforms() {

        this._mvp_matrix = super.getUniform("mvp_matrix");
        this._transf_matrix = super.getUniform("transf_matrix");
        this._color = super.getUniform("color");

        this._fog_color = super.getUniform("fog_color");
        this._fog_gradient = super.getUniform("fog_gradient");
        this._fog_density = super.getUniform("fog_density");
    }

    public void loadUniforms(World world, CameraProjective camera) {

        this.loadUniformMatrix(this._mvp_matrix, camera.getMVPMatrix());

        this.loadUniformVec(this._fog_color, world.getWeather().getFogColor());
        this.loadUniformFloat(this._fog_gradient, world.getWeather().getFogGradient());
        this.loadUniformFloat(this._fog_density, world.getWeather().getFogDensity());
    }

    private static final Matrix4f matrixbuffer = new Matrix4f();

    public void loadUniforms(MVPObject object) {
        Matrix4f matrix = object.getTransformationMatrix();
        if (matrix == null) {
            matrix = Matrix4f.createTransformationMatrix(matrixbuffer, null, null, null);
        }
        this.loadUniformMatrix(this._transf_matrix, matrix);
        this.loadUniformVec(this._color, object.getColor());
    }
}