55 lines
1.5 KiB
Java
55 lines
1.5 KiB
Java
package io.github.hydos.ginger.engine.render.renderers;
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import java.util.List;
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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.GuiTexture;
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import io.github.hydos.ginger.engine.math.Maths;
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import io.github.hydos.ginger.engine.render.models.RawModel;
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import io.github.hydos.ginger.engine.render.shaders.GuiShader;
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import io.github.hydos.ginger.engine.utils.Loader;
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public class GuiRenderer
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{
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private final RawModel quad;
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private GuiShader shader;
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public GuiRenderer(GuiShader shader)
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{
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this.shader = shader;
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float[] positions =
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{
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-1, 1, -1, -1, 1, 1, 1, -1
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};
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quad = Loader.loadToVAO(positions, 2);
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}
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public void render(List<GuiTexture> guis)
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{
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shader.start();
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GL30.glBindVertexArray(quad.getVaoID());
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GL20.glEnableVertexAttribArray(0);
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GL11.glEnable(GL11.GL_BLEND);
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GL11.glDisable(GL11.GL_DEPTH_TEST);
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GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
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for (GuiTexture gui : guis)
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{
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GL13.glActiveTexture(GL13.GL_TEXTURE0);
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GL11.glBindTexture(GL11.GL_TEXTURE_2D, gui.getTexture());
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Matrix4f matrix = Maths.createTransformationMatrix(gui.getPosition(), gui.getScale());
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shader.loadTransformation(matrix);
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GL11.glDrawArrays(GL11.GL_TRIANGLE_STRIP, 0, quad.getVertexCount());
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}
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GL11.glDisable(GL11.GL_BLEND);
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GL11.glEnable(GL11.GL_DEPTH_TEST);
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GL20.glDisableVertexAttribArray(0);
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GL30.glBindVertexArray(0);
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shader.stop();
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}
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public void cleanUp()
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{ shader.cleanUp(); }
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}
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