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Use BlendFactor only when MaterialType != EMT_ONETEXTURE_BLEND

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The way this was implemented BlendFactor and MaterialTypeParam could conflict otherwise as they both send the blend functions.

We could probably rewrite all places which use EMT_ONETEXTURE_BLEND+MaterialTypeParam to additionally check for BlendFactor, but it would still set the blend-functions twice. 
I'm not sure if BlendFactor works with 2D materials currently? (but we can't set those to shaders yet anyway except in the gles branch...).

I've also started documenting a few things about how I suppose it's working, I hope I got it all right.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6034 dfc29bdd-3216-0410-991c-e03cc46cb475
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cutealien
2020-01-03 14:58:46 +00:00
parent 473ab1ea58
commit 0b71328102
7 changed files with 26 additions and 11 deletions
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source/Irrlicht/COpenGLShaderMaterialRenderer.h
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@ -21,7 +21,7 @@ namespace video
class COpenGLDriver;
class IShaderConstantSetCallBack;
//! Class for using vertex and pixel shaders with OpenGL
//! Class for using vertex and pixel shaders with OpenGL (asm not glsl!)
class COpenGLShaderMaterialRenderer : public IMaterialRenderer
{
public: