81 lines
2.3 KiB
Java
81 lines
2.3 KiB
Java
package io.github.hydos.ginger.engine.render.renderers;
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import java.util.*;
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import org.joml.Matrix4f;
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import org.lwjgl.opengl.*;
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import io.github.hydos.ginger.engine.elements.objects.Entity;
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import io.github.hydos.ginger.engine.math.Maths;
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import io.github.hydos.ginger.engine.render.MasterRenderer;
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import io.github.hydos.ginger.engine.render.models.*;
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import io.github.hydos.ginger.engine.render.shaders.StaticShader;
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import io.github.hydos.ginger.engine.render.texture.ModelTexture;
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public class EntityRenderer
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{
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private StaticShader shader;
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public EntityRenderer(StaticShader shader, Matrix4f projectionMatrix)
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{
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this.shader = shader;
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shader.start();
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shader.loadProjectionMatrix(projectionMatrix);
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shader.stop();
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}
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public void render(Map<TexturedModel, List<Entity>> entities)
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{
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for (TexturedModel model : entities.keySet())
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{
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prepareTexturedModel(model);
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List<Entity> batch = entities.get(model);
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for (Entity entity : batch)
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{
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prepareInstance(entity);
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GL11.glDrawElements(GL11.GL_TRIANGLES, model.getRawModel().getVertexCount(), GL11.GL_UNSIGNED_INT, 0);
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}
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unbindTexturedModel();
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}
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}
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private void prepareTexturedModel(TexturedModel model)
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{
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RawModel rawModel = model.getRawModel();
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GL30.glBindVertexArray(rawModel.getVaoID());
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GL20.glEnableVertexAttribArray(0);
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GL20.glEnableVertexAttribArray(1);
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GL20.glEnableVertexAttribArray(2);
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ModelTexture texture = model.getTexture();
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if (texture.isTransparent())
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{
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MasterRenderer.disableCulling();
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}
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else
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{
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MasterRenderer.enableCulling();
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}
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shader.loadFakeLightingVariable(texture.isUseFakeLighting());
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shader.loadShine(texture.getShineDamper(), texture.getReflectivity());
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GL13.glActiveTexture(GL13.GL_TEXTURE0);
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GL11.glBindTexture(GL11.GL_TEXTURE_2D, model.getTexture().getTextureID());
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}
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private void unbindTexturedModel()
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{
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GL20.glDisableVertexAttribArray(0);
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GL20.glDisableVertexAttribArray(1);
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GL20.glDisableVertexAttribArray(2);
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GL30.glBindVertexArray(0);
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}
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private void prepareInstance(Entity entity)
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{
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Matrix4f transformationMatrix = Maths.createTransformationMatrix(entity.getPosition(), entity.getRotX(), entity.getRotY(), entity.getRotZ(), entity.getScale());
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shader.loadTransformationMatrix(transformationMatrix);
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}
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public void prepare()
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{ GL11.glEnable(GL11.GL_DEPTH_TEST); }
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}
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