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Add (low level) functionality to allow rendering 3D Meshes.

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- Add love.graphics.setDepthMode(testcomparison, enablewrites).
- Add love.graphics.setMeshCullMode.
- Add love.graphics.setFrontFaceWinding.

Depth testing and depth writes require a depth buffer to work. The mesh cull mode controls whether front/back faces of a mesh are culled. The front face winding determines whether a clockwise or counterclockwise-oriented face in a mesh is considered front facing.

--HG--
branch : minor
This commit is contained in:
Alex Szpakowski
2017-12-09 23:34:08 -04:00
parent 915e6c8eec
commit 7354de2059
21 changed files with 572 additions and 113 deletions
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src/modules/graphics/Text.cpp
+6 -5
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@@ -266,15 +266,16 @@ void Text::draw(Graphics *gfx, const Matrix4 &m)
Graphics::TempTransform transform(gfx, m);
Graphics::DrawIndexedCommand drawcmd(&vertexAttributes, &vertexBuffers, quadIndices.getBuffer());
drawcmd.indexType = quadIndices.getType();
size_t elemsize = quadIndices.getElementSize();
IndexDataType datatype = quadIndices.getType();
Buffer *indexbuffer = quadIndices.getBuffer();
for (const Font::DrawCommand &cmd : draw_commands)
{
int count = (cmd.vertexcount / 4) * 6;
size_t offset = (cmd.startvertex / 4) * 6 * elemsize;
gfx->drawIndexed(PRIMITIVE_TRIANGLES, count, 1, datatype, indexbuffer, offset, vertexAttributes, vertexBuffers, cmd.texture);
drawcmd.indexCount = (cmd.vertexcount / 4) * 6;
drawcmd.indexBufferOffset = (cmd.startvertex / 4) * 6 * elemsize;
drawcmd.texture = cmd.texture;
gfx->draw(drawcmd);
}
}