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Add support for depth clamping

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This commit is contained in:
Jérôme Leclercq
2021-07-09 00:22:08 +02:00
parent 3a3279246f
commit 8458301a64
12 changed files with 74 additions and 2 deletions
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21
src/Nazara/OpenGLRenderer/Wrapper/Context.cpp
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@@ -281,6 +281,16 @@ namespace Nz::GL
m_extensionStatus.fill(ExtensionStatus::NotSupported);
// Depth clamp
if (m_params.type == ContextType::OpenGL && m_params.glMajorVersion >= 3 && m_params.glMajorVersion >= 2)
m_extensionStatus[UnderlyingCast(Extension::DepthClamp)] = ExtensionStatus::Core;
else if (m_supportedExtensions.count("GL_ARB_depth_clamp"))
m_extensionStatus[UnderlyingCast(Extension::DepthClamp)] = ExtensionStatus::ARB;
else if (m_supportedExtensions.count("GL_EXT_depth_clamp"))
m_extensionStatus[UnderlyingCast(Extension::DepthClamp)] = ExtensionStatus::EXT;
else if (m_supportedExtensions.count("GL_NV_depth_clamp"))
m_extensionStatus[UnderlyingCast(Extension::DepthClamp)] = ExtensionStatus::Vendor;
// SpirV
if (m_params.type == ContextType::OpenGL && m_params.glMajorVersion >= 4 && m_params.glMajorVersion >= 6)
m_extensionStatus[UnderlyingCast(Extension::SpirV)] = ExtensionStatus::Core;
@@ -599,6 +609,17 @@ namespace Nz::GL
m_state.renderStates.depthBuffer = renderStates.depthBuffer;
}
// Depth clamp
if (m_state.renderStates.depthClamp != renderStates.depthClamp)
{
if (renderStates.depthClamp)
glEnable(GL_DEPTH_CLAMP_EXT);
else
glDisable(GL_DEPTH_CLAMP_EXT);
m_state.renderStates.depthClamp = renderStates.depthClamp;
}
// Face culling
if (m_state.renderStates.faceCulling != renderStates.faceCulling)
{