37 lines
1.3 KiB
Java
37 lines
1.3 KiB
Java
package net.minecraft.client.renderer;
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import com.mojang.blaze3d.buffers.GpuBuffer;
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import com.mojang.blaze3d.buffers.GpuBufferSlice;
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import com.mojang.blaze3d.buffers.Std140Builder;
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import com.mojang.blaze3d.systems.GpuDevice;
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import com.mojang.blaze3d.systems.RenderSystem;
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import java.nio.ByteBuffer;
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import net.fabricmc.api.EnvType;
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import net.fabricmc.api.Environment;
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import org.joml.Matrix4f;
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import org.lwjgl.system.MemoryStack;
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@Environment(EnvType.CLIENT)
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public class PerspectiveProjectionMatrixBuffer implements AutoCloseable {
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private final GpuBuffer buffer;
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private final GpuBufferSlice bufferSlice;
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public PerspectiveProjectionMatrixBuffer(String label) {
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GpuDevice gpuDevice = RenderSystem.getDevice();
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this.buffer = gpuDevice.createBuffer(() -> "Projection matrix UBO " + label, 136, RenderSystem.PROJECTION_MATRIX_UBO_SIZE);
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this.bufferSlice = this.buffer.slice(0, RenderSystem.PROJECTION_MATRIX_UBO_SIZE);
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}
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public GpuBufferSlice getBuffer(Matrix4f pose) {
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try (MemoryStack memoryStack = MemoryStack.stackPush()) {
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ByteBuffer byteBuffer = Std140Builder.onStack(memoryStack, RenderSystem.PROJECTION_MATRIX_UBO_SIZE).putMat4f(pose).get();
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RenderSystem.getDevice().createCommandEncoder().writeToBuffer(this.buffer.slice(), byteBuffer);
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}
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return this.bufferSlice;
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}
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public void close() {
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this.buffer.close();
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}
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}
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