com.grillecube.engine.renderer.world.terrain.ProgramTerrainShadow.java Source code

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Here is the source code for com.grillecube.engine.renderer.world.terrain.ProgramTerrainShadow.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.terrain;

import org.lwjgl.opengl.GL20;

import com.grillecube.engine.opengl.GLH;
import com.grillecube.engine.opengl.object.GLProgram;
import com.grillecube.engine.renderer.world.ShadowCamera;
import com.grillecube.engine.resources.R;

public class ProgramTerrainShadow extends GLProgram {

    /** uniforms location */
    private int _mvp_matrix;
    private int _transf_matrix;
    private int _tx_atlas;

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

    @Override
    public void bindAttributes() {
        super.bindAttribute(0, "position");
    }

    @Override
    public void linkUniforms() {
        this._mvp_matrix = super.getUniform("mvp_matrix");
        this._transf_matrix = super.getUniform("transf_matrix");
        this._tx_atlas = super.getUniform("tx_atlas");
    }

    /** load global terrain uniform */
    public void loadUniforms(ShadowCamera shadow_camera) {
        this.loadUniformMatrix(this._mvp_matrix, shadow_camera.getMVPMatrix());
        this.loadUniformInteger(this._tx_atlas, 0);
    }

    /** load terrain instance uniforms variable */
    public void loadInstanceUniforms(TerrainMesh mesh) {
        this.loadUniformMatrix(this._transf_matrix, mesh.getTransformationMatrix());
    }
}