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package gregtech.common.render;
import static gregtech.api.enums.Mods.GregTech;
import java.nio.FloatBuffer;
import net.minecraft.client.renderer.ActiveRenderInfo;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.AdvancedModelLoader;
import org.joml.Matrix4fStack;
import org.joml.Vector4f;
import org.lwjgl.BufferUtils;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL20;
import com.gtnewhorizon.gtnhlib.client.renderer.CapturingTessellator;
import com.gtnewhorizon.gtnhlib.client.renderer.TessellatorManager;
import com.gtnewhorizon.gtnhlib.client.renderer.shader.ShaderProgram;
import com.gtnewhorizon.gtnhlib.client.renderer.vbo.IModelCustomExt;
import com.gtnewhorizon.gtnhlib.client.renderer.vbo.VertexBuffer;
import com.gtnewhorizon.gtnhlib.client.renderer.vertex.DefaultVertexFormat;
import cpw.mods.fml.client.registry.ClientRegistry;
import gregtech.common.tileentities.render.TileEntityBlackhole;
public class BlackholeRenderer extends TileEntitySpecialRenderer {
private boolean initialized = false;
private ShaderProgram blackholeProgram;
private static int u_CameraPosition = -1, u_Scale = -1, u_Time = -1, u_Stability = -1;
private static final Matrix4fStack modelMatrixStack = new Matrix4fStack(4);
private static IModelCustomExt blackholeModel;
private static ResourceLocation blackholeTexture;
private static float modelScale = .5f;
private ShaderProgram laserProgram;
private static int u_LaserCameraPosition = -1, u_LaserColor = -1, u_LaserModelMatrix = -1;
private static VertexBuffer laserVBO;
private static ResourceLocation laserTexture;
private static final Matrix4fStack modelMatrix = new Matrix4fStack(2);
private static final float WIDTH = .1f;
private static final float EXCLUSION = 1f;
public BlackholeRenderer() {
ClientRegistry.bindTileEntitySpecialRenderer(TileEntityBlackhole.class, this);
}
private void init() {
try {
blackholeProgram = new ShaderProgram(
GregTech.resourceDomain,
"shaders/blackhole.vert.glsl",
"shaders/blackhole.frag.glsl");
u_CameraPosition = blackholeProgram.getUniformLocation("u_CameraPosition");
u_Scale = blackholeProgram.getUniformLocation("u_Scale");
u_Time = blackholeProgram.getUniformLocation("u_Time");
u_Stability = blackholeProgram.getUniformLocation("u_Stability");
} catch (Exception e) {
System.out.println(e.getMessage());
return;
}
blackholeModel = (IModelCustomExt) AdvancedModelLoader
.loadModel(new ResourceLocation(GregTech.resourceDomain, "textures/model/blackhole.obj"));
blackholeTexture = new ResourceLocation(GregTech.resourceDomain, "textures/model/blackhole.png");
blackholeProgram.use();
GL20.glUniform1f(u_Scale, modelScale);
GL20.glUniform1f(u_Stability, .1f);
ShaderProgram.clear();
try {
laserProgram = new ShaderProgram(
GregTech.resourceDomain,
"shaders/laser.vert.glsl",
"shaders/laser.frag.glsl");
u_LaserCameraPosition = laserProgram.getUniformLocation("u_CameraPosition");
u_LaserColor = laserProgram.getUniformLocation("u_Color");
u_LaserModelMatrix = laserProgram.getUniformLocation("u_ModelMatrix");
} catch (Exception e) {
System.out.println(e.getMessage());
return;
}
laserTexture = new ResourceLocation(GregTech.resourceDomain, "textures/model/laser.png");
TessellatorManager.startCapturing();
CapturingTessellator tess = (CapturingTessellator) TessellatorManager.get();
tess.startDrawingQuads();
tess.addVertexWithUV(.5 + 8, 0, -WIDTH, 0, 0);
tess.addVertexWithUV(.5 + 8, 0, WIDTH, 0, 1);
tess.addVertexWithUV(EXCLUSION, 0, WIDTH / 5, 1, 1);
tess.addVertexWithUV(EXCLUSION, 0, -WIDTH / 5, 1, 0);
tess.addVertexWithUV(-.5 - 8, 0, -WIDTH, 0, 0);
tess.addVertexWithUV(-.5 - 8, 0, WIDTH, 0, 1);
tess.addVertexWithUV(-EXCLUSION, 0, WIDTH / 5, 1, 1);
tess.addVertexWithUV(-EXCLUSION, 0, -WIDTH / 5, 1, 0);
tess.draw();
laserVBO = TessellatorManager.stopCapturingToVBO(DefaultVertexFormat.POSITION_TEXTURE_NORMAL);
initialized = true;
}
private void renderBlackHole(TileEntityBlackhole tile, double x, double y, double z, float timer) {
blackholeProgram.use();
bindTexture(blackholeTexture);
GL20.glUniform1f(u_Stability, tile.getStability());
modelMatrixStack.clear();
float xLocal = ((float) x + .5f);
float yLocal = ((float) y + .5f);
float zLocal = ((float) z + .5f);
GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS);
GL11.glPushMatrix();
GL20.glUniform3f(
u_CameraPosition,
ActiveRenderInfo.objectX - xLocal,
ActiveRenderInfo.objectY - yLocal,
ActiveRenderInfo.objectZ - zLocal);
GL20.glUniform1f(u_Time, timer);
GL11.glTranslated(x + .5f, y + .5f, z + .5f);
blackholeModel.renderAllVBO();
GL11.glPopMatrix();
GL11.glPopAttrib();
ShaderProgram.clear();
}
private void renderLasers(TileEntityBlackhole tile, double x, double y, double z, float timer) {
laserProgram.use();
bindTexture(laserTexture);
float cx = ((float) x + .5f);
float cy = ((float) y + .5f);
float cz = ((float) z + .5f);
GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS);
GL11.glDisable(GL11.GL_CULL_FACE);
GL11.glPushMatrix();
GL20.glUniform3f(u_LaserColor, tile.getLaserR(), tile.getLaserG(), tile.getLaserB());
modelMatrix.clear();
modelMatrix.translate(cx, cy, cz);
// First set
FloatBuffer matrixBuffer = BufferUtils.createFloatBuffer(16);
GL20.glUniformMatrix4(u_LaserModelMatrix, false, modelMatrix.get(matrixBuffer));
modelMatrix.pushMatrix();
modelMatrix.invert();
Vector4f cameraPosition = new Vector4f(
ActiveRenderInfo.objectX,
ActiveRenderInfo.objectY,
ActiveRenderInfo.objectZ,
1);
cameraPosition = modelMatrix.transform(cameraPosition);
GL20.glUniform3f(u_LaserCameraPosition, cameraPosition.x, cameraPosition.y, cameraPosition.z);
laserVBO.render();
// Second set
modelMatrix.popMatrix();
matrixBuffer.clear();
modelMatrix.rotate((float) Math.PI / 2, 0, 1, 0);
GL20.glUniformMatrix4(u_LaserModelMatrix, false, modelMatrix.get(matrixBuffer));
modelMatrix.invert();
cameraPosition.set(ActiveRenderInfo.objectX, ActiveRenderInfo.objectY, ActiveRenderInfo.objectZ, 1);
cameraPosition = modelMatrix.transform(cameraPosition);
GL20.glUniform3f(u_LaserCameraPosition, cameraPosition.x, cameraPosition.y, cameraPosition.z);
laserVBO.render();
GL11.glPopMatrix();
GL11.glPopAttrib();
ShaderProgram.clear();
}
public void renderTileEntityAt(TileEntity tile, double x, double y, double z, float timeSinceLastTick) {
if (!(tile instanceof TileEntityBlackhole blackhole)) return;
if (!initialized) {
init();
if (!initialized) return;
}
if (((TileEntityBlackhole) tile).getLaserRender()) {
renderLasers(
blackhole,
x,
y,
z,
tile.getWorldObj()
.getWorldTime() + timeSinceLastTick);
}
renderBlackHole(
blackhole,
x,
y,
z,
tile.getWorldObj()
.getWorldTime() + timeSinceLastTick);
}
}
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