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Added instancing support to Meshes via Mesh:setInstanceCount. Added a new built-in variable to vertex shaders: int love_InstanceID.

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love.graphics.draw(mesh) will draw the mesh instancecount times, using hardware instancing when available. The only way to draw individual instances differently from each other is to use the love_InstanceID variable in a vertex shader.

Added love.graphics.isSupported(“instancing”). Hardware instancing is supported if true, otherwise a (slower) pseudo-instancing fallback is used internally when drawing instanced meshes.
This commit is contained in:
Alex Szpakowski
2014-01-21 06:01:50 -04:00
parent 81d9810ed8
commit 73f1ce0d40
13 changed files with 217 additions and 13 deletions
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src/modules/graphics/Graphics.cpp
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@@ -175,6 +175,7 @@ StringMap<Graphics::Support, Graphics::SUPPORT_MAX_ENUM>::Entry Graphics::suppor
{ "mipmap", Graphics::SUPPORT_MIPMAP },
{ "dxt", Graphics::SUPPORT_DXT },
{ "bc5", Graphics::SUPPORT_BC5 },
{ "instancing", Graphics::SUPPORT_INSTANCING },
};
StringMap<Graphics::Support, Graphics::SUPPORT_MAX_ENUM> Graphics::support(Graphics::supportEntries, sizeof(Graphics::supportEntries));