protected override void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = Initializers.commandBufferBeginInfo();
FixedArray2 <VkClearValue> clearValues = new FixedArray2 <VkClearValue>();
clearValues.First.color = defaultClearColor;
clearValues.Second.depthStencil = new VkClearDepthStencilValue {
depth = 1.0f, stencil = 0
};
VkRenderPassBeginInfo renderPassBeginInfo = Initializers.renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = &clearValues.First;
for (int i = 0; i < drawCmdBuffers.Count; ++i)
{
// Set target frame buffer
renderPassBeginInfo.framebuffer = frameBuffers[i];
Util.CheckResult(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = Initializers.viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = Initializers.rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
ulong offsets = 0;
// 3D scene
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts_scene, 0, 1, ref descriptorSets_scene, 0, null);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines_phongPass);
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, ref models_example.vertices.buffer, &offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], models_example.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
vkCmdDrawIndexed(drawCmdBuffers[i], models_example.indexCount, 1, 0, 0, 0);
// Fullscreen triangle (clipped to a quad) with radial blur
if (blur)
{
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts_radialBlur, 0, 1, ref descriptorSets_radialBlur, 0, null);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, (displayTexture) ? pipelines_offscreenDisplay : pipelines_radialBlur);
vkCmdDraw(drawCmdBuffers[i], 3, 1, 0, 0);
}
vkCmdEndRenderPass(drawCmdBuffers[i]);
Util.CheckResult(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}
protected override void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = Initializers.commandBufferBeginInfo();
FixedArray2<VkClearValue> clearValues = new FixedArray2<VkClearValue>();
clearValues.First.color = defaultClearColor;
clearValues.Second.depthStencil = new VkClearDepthStencilValue { depth = 1.0f, stencil = 0 };
VkRenderPassBeginInfo renderPassBeginInfo = Initializers.renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = &clearValues.First;
for (int i = 0; i < drawCmdBuffers.Count; ++i)
{
// Set target frame buffer
renderPassBeginInfo.framebuffer = frameBuffers[i];
Util.CheckResult(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VkSubpassContents.Inline);
VkViewport viewport = Initializers.viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = Initializers.rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
ulong offsets = 0;
// Skybox
if (displaySkybox)
{
vkCmdBindDescriptorSets(drawCmdBuffers[i], VkPipelineBindPoint.Graphics, pipelineLayout, 0, 1, ref descriptorSets_skybox, 0, null);
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, ref models_skybox.vertices.buffer, ref offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], models_skybox.indices.buffer, 0, VkIndexType.Uint32);
vkCmdBindPipeline(drawCmdBuffers[i], VkPipelineBindPoint.Graphics, pipelines_skybox);
vkCmdDrawIndexed(drawCmdBuffers[i], models_skybox.indexCount, 1, 0, 0, 0);
}
// 3D object
vkCmdBindDescriptorSets(drawCmdBuffers[i], VkPipelineBindPoint.Graphics, pipelineLayout, 0, 1, ref descriptorSets_object, 0, null);
var vbuffer = models_objects[(int)models_objectIndex].vertices.buffer;
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &vbuffer, ref offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], models_objects[(int)models_objectIndex].indices.buffer, 0, VkIndexType.Uint32);
vkCmdBindPipeline(drawCmdBuffers[i], VkPipelineBindPoint.Graphics, pipelines_reflect);
vkCmdDrawIndexed(drawCmdBuffers[i], models_objects[(int)models_objectIndex].indexCount, 1, 0, 0, 0);
vkCmdEndRenderPass(drawCmdBuffers[i]);
Util.CheckResult(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}
// Sets up the command buffer that renders the scene to the offscreen frame buffer
void buildOffscreenCommandBuffer()
{
if (offscreenPass.commandBuffer == NullHandle)
{
offscreenPass.commandBuffer = createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
}
if (offscreenPass.semaphore == NullHandle)
{
VkSemaphoreCreateInfo semaphoreCreateInfo = Initializers.semaphoreCreateInfo();
Util.CheckResult(vkCreateSemaphore(device, &semaphoreCreateInfo, null, out offscreenPass.semaphore));
}
VkCommandBufferBeginInfo cmdBufInfo = Initializers.commandBufferBeginInfo();
FixedArray2 <VkClearValue> clearValues = new FixedArray2 <VkClearValue>();
clearValues.First.color = new VkClearColorValue {
float32_0 = 0.0f, float32_1 = 0.0f, float32_2 = 0.0f, float32_3 = 0.0f
};
clearValues.Second.depthStencil = new VkClearDepthStencilValue {
depth = 1.0f, stencil = 0
};
VkRenderPassBeginInfo renderPassBeginInfo = Initializers.renderPassBeginInfo();
renderPassBeginInfo.renderPass = offscreenPass.renderPass;
renderPassBeginInfo.framebuffer = offscreenPass.frameBuffer;
renderPassBeginInfo.renderArea.extent.width = offscreenPass.width;
renderPassBeginInfo.renderArea.extent.height = offscreenPass.height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = &clearValues.First;
Util.CheckResult(vkBeginCommandBuffer(offscreenPass.commandBuffer, &cmdBufInfo));
VkViewport viewport = Initializers.viewport((float)offscreenPass.width, (float)offscreenPass.height, 0.0f, 1.0f);
vkCmdSetViewport(offscreenPass.commandBuffer, 0, 1, &viewport);
VkRect2D scissor = Initializers.rect2D(offscreenPass.width, offscreenPass.height, 0, 0);
vkCmdSetScissor(offscreenPass.commandBuffer, 0, 1, &scissor);
vkCmdBeginRenderPass(offscreenPass.commandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
vkCmdBindDescriptorSets(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts_scene, 0, 1, ref descriptorSets_scene, 0, null);
vkCmdBindPipeline(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines_colorPass);
ulong offsets = 0;
vkCmdBindVertexBuffers(offscreenPass.commandBuffer, VERTEX_BUFFER_BIND_ID, 1, ref models_example.vertices.buffer, &offsets);
vkCmdBindIndexBuffer(offscreenPass.commandBuffer, models_example.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
vkCmdDrawIndexed(offscreenPass.commandBuffer, models_example.indexCount, 1, 0, 0, 0);
vkCmdEndRenderPass(offscreenPass.commandBuffer);
Util.CheckResult(vkEndCommandBuffer(offscreenPass.commandBuffer));
}
protected override void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = Initializers.commandBufferBeginInfo();
FixedArray2 <VkClearValue> clearValues = new FixedArray2 <VkClearValue>();
clearValues.First.color = defaultClearColor;
clearValues.Second.depthStencil = new VkClearDepthStencilValue {
depth = 1.0f, stencil = 0
};
VkRenderPassBeginInfo renderPassBeginInfo = Initializers.renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = &clearValues.First;
for (int i = 0; i < drawCmdBuffers.Count; ++i)
{
renderPassBeginInfo.framebuffer = frameBuffers[i];
Util.CheckResult(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = Initializers.viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = Initializers.rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
ulong offsets = 0;
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, ref vertexBuffer.buffer, &offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], indexBuffer.buffer, 0, VK_INDEX_TYPE_UINT32);
// Render multiple objects using different model matrices by dynamically offsetting into one uniform buffer
for (uint j = 0; j < OBJECT_INSTANCES; j++)
{
// One dynamic offset per dynamic descriptor to offset into the ubo containing all model matrices
uint dynamicOffset = j * (uint)(dynamicAlignment);
// Bind the descriptor set for rendering a mesh using the dynamic offset
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, ref descriptorSet, 1, &dynamicOffset);
vkCmdDrawIndexed(drawCmdBuffers[i], indexCount, 1, 0, 0, 0);
}
vkCmdEndRenderPass(drawCmdBuffers[i]);
Util.CheckResult(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}
protected VkCommandBuffer createCommandBuffer(VkCommandBufferLevel level, bool begin)
{
VkCommandBuffer cmdBuffer;
VkCommandBufferAllocateInfo cmdBufAllocateInfo = Initializers.CommandBufferAllocateInfo(cmdPool, level, 1);
Util.CheckResult(vkAllocateCommandBuffers(device, &cmdBufAllocateInfo, out cmdBuffer));
// If requested, also start the new command buffer
if (begin)
{
VkCommandBufferBeginInfo cmdBufInfo = Initializers.commandBufferBeginInfo();
Util.CheckResult(vkBeginCommandBuffer(cmdBuffer, &cmdBufInfo));
}
return(cmdBuffer);
}
protected override void buildCommandBuffers()
{
VkCommandBufferBeginInfo cmdBufInfo = Initializers.commandBufferBeginInfo();
FixedArray2 <VkClearValue> clearValues = new FixedArray2 <VkClearValue>();
clearValues.First.color = defaultClearColor;
clearValues.Second.depthStencil = new VkClearDepthStencilValue {
depth = 1.0f, stencil = 0
};
VkRenderPassBeginInfo renderPassBeginInfo = Initializers.renderPassBeginInfo();
renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.renderArea.offset.x = 0;
renderPassBeginInfo.renderArea.offset.y = 0;
renderPassBeginInfo.renderArea.extent.width = width;
renderPassBeginInfo.renderArea.extent.height = height;
renderPassBeginInfo.clearValueCount = 2;
renderPassBeginInfo.pClearValues = &clearValues.First;
for (int i = 0; i < drawCmdBuffers.Count; ++i)
{
// Set target frame buffer
renderPassBeginInfo.framebuffer = frameBuffers[i];
Util.CheckResult(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VkSubpassContents.Inline);
VkViewport viewport = Initializers.viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = Initializers.rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
// Update light positions
// w component = light radius scale
const float r = 7.5f;
float sin_t = (float)Math.Sin(Util.DegreesToRadians(timer * 360));
float cos_t = (float)Math.Cos(Util.DegreesToRadians(timer * 360));
const float y = -4.0f;
pushConstants[0] = new Vector4(r * 1.1f * sin_t, y, r * 1.1f * cos_t, 1.0f);
pushConstants[1] = new Vector4(-r * sin_t, y, -r * cos_t, 1.0f);
pushConstants[2] = new Vector4(r * 0.85f * sin_t, y, -sin_t * 2.5f, 1.5f);
pushConstants[3] = new Vector4(0.0f, y, r * 1.25f * cos_t, 1.5f);
pushConstants[4] = new Vector4(r * 2.25f * cos_t, y, 0.0f, 1.25f);
pushConstants[5] = new Vector4(r * 2.5f * (float)Math.Cos(Util.DegreesToRadians(timer * 360)), y, r * 2.5f * sin_t, 1.25f);
// Submit via push constant (rather than a UBO)
vkCmdPushConstants(
drawCmdBuffers[i],
pipelineLayout,
VkShaderStageFlags.Vertex,
0,
pushConstants.Count * (uint)sizeof(Vector4),
pushConstants.Data.ToPointer());
vkCmdBindPipeline(drawCmdBuffers[i], VkPipelineBindPoint.Graphics, pipelines_solid);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VkPipelineBindPoint.Graphics, pipelineLayout, 0, 1, ref descriptorSet, 0, null);
ulong offsets = 0;
vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, ref models_scene.vertices.buffer, &offsets);
vkCmdBindIndexBuffer(drawCmdBuffers[i], models_scene.indices.buffer, 0, VkIndexType.Uint32);
vkCmdDrawIndexed(drawCmdBuffers[i], models_scene.indexCount, 1, 0, 0, 0);
vkCmdEndRenderPass(drawCmdBuffers[i]);
Util.CheckResult(vkEndCommandBuffer(drawCmdBuffers[i]));
}
}