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starting vertex rendering

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This commit is contained in:
Harrison Corlett 2026-01-30 09:29:52 +00:00
parent 12de947b1e
commit 01b7d524ee
4 changed files with 155 additions and 4 deletions
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47
src/main/java/net/halbear/Terrain4J/EngineCore/Vulkan/Rendering/VertexBufferStructure.java Normal file
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@ -0,0 +1,47 @@
package net.halbear.Terrain4J.EngineCore.Vulkan.Rendering;
import net.halbear.Terrain4J.EngineCore.Vulkan.Util.VulkanUtils;
import org.lwjgl.vulkan.VkPipelineVertexInputStateCreateInfo;
import org.lwjgl.vulkan.VkVertexInputAttributeDescription;
import org.lwjgl.vulkan.VkVertexInputBindingDescription;
import static org.lwjgl.vulkan.VK10.VK_FORMAT_R32G32B32_SFLOAT;
import static org.lwjgl.vulkan.VK10.VK_VERTEX_INPUT_RATE_VERTEX;
public class VertexBufferStructure {
private final int NUMBER_OF_ATTRIBUTES = 1;
private final int POSITION_COMPONENTS = 3;
private final VkPipelineVertexInputStateCreateInfo VertexInput;
private final VkVertexInputAttributeDescription.Buffer VertexInputAttributes;
private final VkVertexInputBindingDescription.Buffer VertexInputBindings;
public VertexBufferStructure(){
VertexInputAttributes = VkVertexInputAttributeDescription.calloc(NUMBER_OF_ATTRIBUTES);
VertexInputBindings = VkVertexInputBindingDescription.calloc(1);
VertexInput = VkPipelineVertexInputStateCreateInfo.calloc();
int i =0;
int Offset = 0;
VertexInputAttributes.get(i)
.binding(0)
.location(i)
.format(VK_FORMAT_R32G32B32_SFLOAT)
.offset(Offset);
VertexInputBindings.get(0)
.binding(0)
.stride(POSITION_COMPONENTS * VulkanUtils.FLOAT_SIZE)
.inputRate(VK_VERTEX_INPUT_RATE_VERTEX);
VertexInput
.sType$Default()
.pVertexAttributeDescriptions(VertexInputAttributes)
.pVertexBindingDescriptions(VertexInputBindings);
}
public void cleanup(){
VertexInput.free();
VertexInputAttributes.free();
}
public VkPipelineVertexInputStateCreateInfo getVertexInput(){
return VertexInput;
}
}

1
src/main/java/net/halbear/Terrain4J/EngineCore/Vulkan/Structure/DisplayToScreen/SceneRender.java
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@ -61,6 +61,7 @@ public class SceneRender { //dynamic rendering;
}
public void Render(VulkanContext vulkanContext, CommandBuffer commandBuffer, int ImageIndex){
UpdateColours(vulkanContext);
try(var MemStack = MemoryStack.stackPush()){
SwapChain swapChain = vulkanContext.GetSwapChain();
long SwapChainImage = swapChain.GetVulkanImageView(ImageIndex).GetVulkanImage();

85
src/main/java/net/halbear/Terrain4J/EngineCore/Vulkan/Util/VulkanBuffer.java Normal file
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@ -0,0 +1,85 @@
package net.halbear.Terrain4J.EngineCore.Vulkan.Util;
import net.halbear.Terrain4J.EngineCore.Logic.VulkanContext;
import net.halbear.Terrain4J.EngineCore.Vulkan.Structure.DeviceLayers.Device;
import org.lwjgl.PointerBuffer;
import org.lwjgl.system.MemoryStack;
import org.lwjgl.system.MemoryUtil;
import org.lwjgl.vulkan.VkBufferCreateInfo;
import org.lwjgl.vulkan.VkDevice;
import org.lwjgl.vulkan.VkMemoryAllocateInfo;
import org.lwjgl.vulkan.VkMemoryRequirements;
import org.tinylog.Logger;
import java.nio.LongBuffer;
import static net.halbear.Terrain4J.EngineCore.Vulkan.Util.VulkanUtils.vkCheck;
import static org.lwjgl.system.MemoryUtil.NULL;
import static org.lwjgl.vulkan.VK10.*;
public class VulkanBuffer {
private final long AllocationSize;
private final long Buffer;
private final long Memory;
private final PointerBuffer pointerBuffer;
private final long RequestedSize;
private long MappedMemory;
public VulkanBuffer(VulkanContext vulkanContext, long Size, int Usage, int RequestMask){
RequestedSize = Size;
MappedMemory = NULL;
try(var MemStack = MemoryStack.stackPush()){
Device device = vulkanContext.GetDevice();
var BufferCreationInfo = VkBufferCreateInfo.calloc(MemStack)
.sType$Default()
.size(Size)
.usage(Usage)
.sharingMode(VK_SHARING_MODE_EXCLUSIVE);
LongBuffer LongPointer = MemStack.mallocLong(1);
vkCheck(vkCreateBuffer(device.FetchVulkanDevice(), BufferCreationInfo, null, LongPointer),"Failed to create Vulkan Buffer");
Buffer = LongPointer.get(0);
var MemoryRequirements = VkMemoryRequirements.calloc(MemStack);
vkGetBufferMemoryRequirements(device.FetchVulkanDevice(), Buffer, MemoryRequirements);
var MemoryAllocation = VkMemoryAllocateInfo.calloc(MemStack)
.sType$Default()
.allocationSize(MemoryRequirements.size())
.memoryTypeIndex(VulkanUtils.MemoryTypeFromProperties(vulkanContext, MemoryRequirements.memoryTypeBits(), RequestMask));
vkCheck(vkAllocateMemory(device.FetchVulkanDevice(),MemoryAllocation,null,LongPointer),"Failed to allocate memory for Vulkan");
AllocationSize = MemoryAllocation.allocationSize();
Memory = LongPointer.get(0);
pointerBuffer = MemoryUtil.memAllocPointer(1);
vkCheck(vkBindBufferMemory(device.FetchVulkanDevice(),Buffer,Memory,0),"Failed to Bind Vulkan Memory Buffer");
}
}
public void cleanup(VulkanContext vulkanContext){
MemoryUtil.memFree(pointerBuffer);
VkDevice vulkanDevice = vulkanContext.GetDevice().FetchVulkanDevice();
vkDestroyBuffer(vulkanDevice,Buffer, null);
vkFreeMemory(vulkanDevice, Memory, null);
Logger.debug("Freed Vulkan Memory Buffer");
}
public long GetBuffer(){
return Buffer;
}
public long GetRequestedSize(){
return RequestedSize;
}
public long MapMemory(VulkanContext vulkanContext){
if(MappedMemory == NULL){
vkCheck(vkMapMemory(vulkanContext.GetDevice().FetchVulkanDevice(), Memory,0,AllocationSize,0,pointerBuffer),"Failed to map Vulkan Buffer");
MappedMemory = pointerBuffer.get(0);
}
return MappedMemory;
}
public void UnMapMemory(VulkanContext vulkanContext){
if(MappedMemory != NULL){
vkUnmapMemory(vulkanContext.GetDevice().FetchVulkanDevice(), Memory);
MappedMemory = NULL;
}
}
}

26
src/main/java/net/halbear/Terrain4J/EngineCore/Vulkan/Util/VulkanUtils.java
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@ -1,10 +1,8 @@
package net.halbear.Terrain4J.EngineCore.Vulkan.Util;
import net.halbear.Terrain4J.EngineCore.Logic.VulkanContext;
import org.lwjgl.system.MemoryStack;
import org.lwjgl.vulkan.VkCommandBuffer;
import org.lwjgl.vulkan.VkDependencyInfo;
import org.lwjgl.vulkan.VkImageMemoryBarrier;
import org.lwjgl.vulkan.VkImageMemoryBarrier2;
import org.lwjgl.vulkan.*;
import org.tinylog.Logger;
import java.util.Locale;
@ -15,6 +13,26 @@ import static org.lwjgl.vulkan.VK13.vkCmdPipelineBarrier2;
public class VulkanUtils {
public static final int MAX_IN_FLIGHT = 2;
public enum OSType {WINDOWS, MACOS, LINUX, UNSUPPORTED}
public static final int FLOAT_SIZE = 4;
public static final int INT_SIZE = 4;
public static int MemoryTypeFromProperties(VulkanContext vulkanContext, int TypeBits, int ReqMask){
int result = -1;
VkMemoryType.Buffer MemoryTypes = vulkanContext.GetPhysicalDevice().GetMemoryProperties().memoryTypes();
for(int i = 0; i < VK_MAX_MEMORY_TYPES; i++){
if((TypeBits & 1) == 1 && (MemoryTypes.get(i).propertyFlags() & ReqMask)==ReqMask){
result = i;
break;
}
TypeBits >>= 1;
}
if(result < 0){
throw new RuntimeException("Failed to find MemoryType");
}
return result;
}
public static OSType getOS() {
OSType result;
String os = System.getProperty("os.name", "generic").toLowerCase(Locale.ENGLISH);