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Blending and depth testing refactoring to Vulkan. Eliminating OpenGL state following.

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This commit is contained in:
Kearwood Gilbert
2022-07-04 20:18:00 -07:00
parent 2e371386cf
commit b801da7eb3
7 changed files with 29 additions and 96 deletions
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77
kraken/KRCamera.cpp
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@@ -261,6 +261,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& surface)
info.shader_name = &shader_name;
info.pCamera = this;
info.renderPass = KRNode::RENDER_PASS_FORWARD_TRANSPARENT;
info.rasterMode = PipelineInfo::RasterMode::kAlphaBlend;
KRPipeline* testPipeline = m_pContext->getPipelineManager()->getPipeline(surface, info, testVertices.getVertexAttributes(), KRMesh::model_format_t::KRENGINE_MODEL_FORMAT_STRIP);
testPipeline->bind(commandBuffer);
testVertices.bind(commandBuffer);
@@ -316,9 +317,8 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& surface)
// ----====---- Transparent Geometry, Forward Rendering ----====----
// TODO - Vulkan refactoring...
/*
GL_PUSH_GROUP_MARKER("Forward Rendering - Transparent");
/*
// Note: These parameters have already been set up by the skybox render above
//
// // Set render target
@@ -331,69 +331,36 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& surface)
// Enable backface culling
GLDEBUG(glCullFace(GL_BACK));
GLDEBUG(glEnable(GL_CULL_FACE));
// Disable z-buffer write
GLDEBUG(glDepthMask(GL_FALSE));
//
// // Enable z-buffer test
// GLDEBUG(glEnable(GL_DEPTH_TEST));
// GLDEBUG(glDepthFunc(GL_LEQUAL));
// GLDEBUG(glDepthRangef(0.0, 1.0));
// Enable alpha blending
GLDEBUG(glEnable(GL_BLEND));
GLDEBUG(glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA));
*/
// Render all transparent geometry
scene.render(commandBuffer, surface, this, m_viewport.getVisibleBounds(), m_viewport, KRNode::RENDER_PASS_FORWARD_TRANSPARENT, false);
// TODO - Vulkan refactoring...
/*
GL_POP_GROUP_MARKER;
*/
// ----====---- Particle Occlusion Tests ----====----
// TODO - Vulkan refactoring...
/*
GL_PUSH_GROUP_MARKER("Particle Occlusion Tests");
/*
// Set render target
GLDEBUG(glBindFramebuffer(GL_FRAMEBUFFER, compositeFramebuffer));
GLDEBUG(glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, compositeDepthTexture, 0));
// Disable backface culling
GLDEBUG(glDisable(GL_CULL_FACE));
// Disable z-buffer write
GLDEBUG(glDepthMask(GL_FALSE));
// Enable z-buffer test
GLDEBUG(glEnable(GL_DEPTH_TEST));
GLDEBUG(glDepthFunc(GL_LEQUAL));
GLDEBUG(glDepthRangef(0.0, 1.0));
// Enable additive blending
GLDEBUG(glEnable(GL_BLEND));
GLDEBUG(glBlendFunc(GL_ONE, GL_ONE));
*/
// ----====---- Perform Occlusion Tests ----====----
scene.render(commandBuffer, surface, this, m_viewport.getVisibleBounds(), m_viewport, RENDER_PASS_PARTICLE_OCCLUSION, false);
// TODO - Vulkan refactoring...
/*
GL_POP_GROUP_MARKER;
*/
// ----====---- Flares ----====----
// TODO - Vulkan refactoring...
/*
GL_PUSH_GROUP_MARKER("Additive Particles");
/*
// Set render target
GLDEBUG(glBindFramebuffer(GL_FRAMEBUFFER, compositeFramebuffer));
@@ -401,27 +368,12 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& surface)
// Disable backface culling
GLDEBUG(glDisable(GL_CULL_FACE));
// Disable z-buffer write
GLDEBUG(glDepthMask(GL_FALSE));
// Disable z-buffer test
GLDEBUG(glDisable(GL_DEPTH_TEST));
GLDEBUG(glDepthRangef(0.0, 1.0));
// Enable additive blending
GLDEBUG(glEnable(GL_BLEND));
GLDEBUG(glBlendFunc(GL_ONE, GL_ONE));
*/
// Render all flares
scene.render(commandBuffer, surface, this, m_viewport.getVisibleBounds(), m_viewport, KRNode::RENDER_PASS_ADDITIVE_PARTICLES, false);
// TODO - Vulkan refactoring...
/*
GL_POP_GROUP_MARKER;
*/
// ----====---- Volumetric Lighting ----====----
@@ -467,9 +419,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& surface)
// ----====---- Debug Overlay ----====----
// TODO - Vulkan refactoring...
/*
GL_PUSH_GROUP_MARKER("Debug Overlays");
*/
if(settings.debug_display == KRRenderSettings::KRENGINE_DEBUG_DISPLAY_OCTREE) {
@@ -495,11 +445,7 @@ void KRCamera::renderFrame(VkCommandBuffer& commandBuffer, KRSurface& surface)
}
}
}
/*
GL_POP_GROUP_MARKER;
*/
// fprintf(stderr, "VBO Mem: %i Kbyte Texture Mem: %i/%i Kbyte (active/total) Shader Handles: %i Visible Bounds: %i Max Texture LOD: %i\n", (int)m_pContext->getMeshManager()->getMemUsed() / 1024, (int)m_pContext->getTextureManager()->getActiveMemUsed() / 1024, (int)m_pContext->getTextureManager()->getMemUsed() / 1024, (int)m_pContext->getPipelineManager()->getShaderHandlesUsed(), (int)m_visibleBounds.size(), m_pContext->getTextureManager()->getLODDimCap());
// TODO - Vulkan refactoring...
@@ -682,10 +628,6 @@ void KRCamera::destroyBuffers()
void KRCamera::renderPost(VkCommandBuffer& commandBuffer, KRSurface& surface)
{
// Disable alpha blending
GLDEBUG(glDisable(GL_BLEND));
/*
FINDME - Determine if we still need this...
@@ -709,13 +651,14 @@ void KRCamera::renderPost(VkCommandBuffer& commandBuffer, KRSurface& surface)
GLDEBUG(glViewport(0, 0, (GLsizei)m_viewport.getSize().x, (GLsizei)m_viewport.getSize().y));
GLDEBUG(glDisable(GL_DEPTH_TEST));
PipelineInfo info{};
std::string shader_name("PostShader");
info.shader_name = &shader_name;
info.pCamera = this;
info.renderPass = KRNode::RENDER_PASS_FORWARD_TRANSPARENT;
info.rasterMode = PipelineInfo::RasterMode::kOpaqueNoTest;
KRPipeline *postShader = m_pContext->getPipelineManager()->getPipeline(surface, info);
@@ -888,7 +831,6 @@ void KRCamera::renderPost(VkCommandBuffer& commandBuffer, KRSurface& surface)
}
}
// Disable backface culling
GLDEBUG(glDisable(GL_CULL_FACE));
@@ -913,9 +855,6 @@ void KRCamera::renderPost(VkCommandBuffer& commandBuffer, KRSurface& surface)
GLDEBUG(glDrawArrays(GL_TRIANGLES, 0, vertex_count));
// Re-enable z-buffer write
GLDEBUG(glDepthMask(GL_TRUE));
m_debug_text_vertices.unlock();
} else {

1
kraken/KRLight.cpp
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@@ -356,6 +356,7 @@ void KRLight::render(RenderInfo& ri) {
info.directional_lights = &ri.directional_lights;
info.spot_lights = &ri.spot_lights;
info.renderPass = ri.renderPass;
info.rasterMode = PipelineInfo::RasterMode::kAdditive;
if(getContext().getPipelineManager()->selectPipeline(*ri.surface, info, ri.viewport, occlusion_test_sphere_matrix, Vector3::Zero(), 0.0f, Vector4::Zero())) {

25
kraken/KRMaterialManager.cpp
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@@ -65,30 +65,7 @@ KRResource* KRMaterialManager::getResource(const std::string& name, const std::s
unordered_map<std::string, KRMaterial *> &KRMaterialManager::getMaterials()
{
return m_materials;
}
void KRMaterialManager::configure(bool blend_enable, GLenum blend_src, GLenum blend_dest, bool depth_test_enable, GLenum depth_func, bool depth_write_enable) {
if(blend_enable) {
GLDEBUG(glEnable(GL_BLEND));
GLDEBUG(glBlendFunc(blend_src, blend_dest));
} else {
GLDEBUG(glDisable(GL_BLEND));
}
if(depth_test_enable) {
GLDEBUG(glEnable(GL_DEPTH_TEST));
GLDEBUG(glDepthFunc(depth_func));
} else {
GLDEBUG(glDisable(GL_DEPTH_TEST));
}
if(depth_write_enable) {
GLDEBUG(glDepthMask(GL_TRUE));
} else {
GLDEBUG(glDepthMask(GL_FALSE));
}
}
}
KRMaterial *KRMaterialManager::getMaterial(const std::string &name) {
std::string lowerName = name;

3
kraken/KRMaterialManager.h
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@@ -55,9 +55,6 @@ public:
void add(KRMaterial *new_material);
KRMaterial *getMaterial(const std::string &name);
void configure(bool blend_enable, GLenum blend_src, GLenum blend_dest, bool depth_test_enable, GLenum depth_func, bool depth_write_enable);
unordered_map<std::string, KRMaterial *> &getMaterials();
private:

5
kraken/KRPipeline.cpp
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@@ -283,6 +283,7 @@ KRPipeline::KRPipeline(KRContext& context, KRSurface& surface, const PipelineInf
switch (info.rasterMode) {
case PipelineInfo::RasterMode::kOpaque:
case PipelineInfo::RasterMode::kOpaqueLessTest:
case PipelineInfo::RasterMode::kOpaqueNoTest:
case PipelineInfo::RasterMode::kOpaqueNoDepthWrite:
colorBlendAttachment.blendEnable = VK_FALSE;
colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
@@ -338,6 +339,10 @@ KRPipeline::KRPipeline(KRContext& context, KRSurface& surface, const PipelineInf
depthStencil.depthTestEnable = VK_TRUE;
depthStencil.depthWriteEnable = VK_TRUE;
break;
case PipelineInfo::RasterMode::kOpaqueNoTest:
depthStencil.depthTestEnable = VK_FALSE;
depthStencil.depthWriteEnable = VK_TRUE;
break;
case PipelineInfo::RasterMode::kOpaqueNoDepthWrite:
case PipelineInfo::RasterMode::kAlphaBlend:
case PipelineInfo::RasterMode::kAdditive:

13
kraken/KRPipeline.h
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@@ -92,6 +92,19 @@ public:
glEnable(GL_DEPTH_TEST))
glDepthFunc(GL_LESS);
glDepthRangef(0.0, 1.0);
*/
kOpaqueNoTest,
/*
kOpaqueNoTest is equivalent to:
// Disable blending
glDisable(GL_BLEND));
// Enable z-buffer write
glDepthMask(GL_TRUE);
// Disable z-buffer test
glDisable(GL_DEPTH_TEST)
*/
kAlphaBlend,
/*

1
kraken/KRReverbZone.cpp
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@@ -135,6 +135,7 @@ void KRReverbZone::render(RenderInfo& ri)
info.directional_lights = &ri.directional_lights;
info.spot_lights = &ri.spot_lights;
info.renderPass = ri.renderPass;
info.rasterMode = PipelineInfo::RasterMode::kAlphaBlend;
KRPipeline *pShader = getContext().getPipelineManager()->getPipeline(*ri.surface, info);
info.rasterMode = PipelineInfo::RasterMode::kAdditive;