diff --git a/src/Graphics/OpenGLContext/GLSL/glsl_CombinerProgramBuilder.cpp b/src/Graphics/OpenGLContext/GLSL/glsl_CombinerProgramBuilder.cpp
index 1784044a..adcfbcd8 100644
--- a/src/Graphics/OpenGLContext/GLSL/glsl_CombinerProgramBuilder.cpp
+++ b/src/Graphics/OpenGLContext/GLSL/glsl_CombinerProgramBuilder.cpp
@@ -278,7 +278,7 @@ public:
 			"IN highp vec2 aTexCoord;							\n"
 			"IN lowp float aNumLights;							\n"
 			"IN highp vec4 aModify;								\n"
-			"IN highp vec3 aBaryCoords;							\n"
+			"IN highp vec2 aBaryCoords;							\n"
 			"													\n"
 			"uniform int uTexturePersp;							\n"
 			"uniform lowp int uTextureFilterMode;		\n"
@@ -350,7 +350,7 @@ public:
 			"    else														\n"
 			"      vShadeColor.rgb = vec3(fp);								\n"
 			"  }															\n"
-			"  vBaryCoords = vec4(aBaryCoords, 0.5f);						\n"
+			"  vBaryCoords = vec4(aBaryCoords, 1.0 - aBaryCoords.x - aBaryCoords.y, 0.5f);	\n"
 			;
 	}
 };
@@ -365,7 +365,7 @@ public:
 			"IN lowp vec4 aColor;											\n"
 			"IN lowp float aNumLights;										\n"
 			"IN highp vec4 aModify;											\n"
-			"IN highp vec3 aBaryCoords;										\n"
+			"IN highp vec2 aBaryCoords;										\n"
 			"																\n"
 			"uniform lowp int uFogUsage;									\n"
 			"uniform mediump vec2 uFogScale;								\n"
@@ -410,7 +410,7 @@ public:
 			"    else														\n"
 			"      vShadeColor.rgb = vec3(fp);								\n"
 			"  }															\n"
-			"  vBaryCoords = vec4(aBaryCoords, 0.5f);						\n"
+			"  vBaryCoords = vec4(aBaryCoords, 1.0 - aBaryCoords.x - aBaryCoords.y, 0.5f); \n"
 			;
 	}
 };
diff --git a/src/Graphics/OpenGLContext/opengl_BufferedDrawer.cpp b/src/Graphics/OpenGLContext/opengl_BufferedDrawer.cpp
index 08d1a416..b6feb234 100644
--- a/src/Graphics/OpenGLContext/opengl_BufferedDrawer.cpp
+++ b/src/Graphics/OpenGLContext/opengl_BufferedDrawer.cpp
@@ -50,7 +50,7 @@ BufferedDrawer::BufferedDrawer(const GLInfo & _glinfo, CachedVertexAttribArray *
 	glVertexAttribPointer(triangleAttrib::color, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid *)(offsetof(Vertex, r)));
 	glVertexAttribPointer(triangleAttrib::texcoord, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid *)(offsetof(Vertex, s)));
 	glVertexAttribPointer(triangleAttrib::modify, 4, GL_BYTE, GL_TRUE, sizeof(Vertex), (const GLvoid *)(offsetof(Vertex, modify)));
-	glVertexAttribPointer(triangleAttrib::barycoords, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)(offsetof(Vertex, bc0)));
+	glVertexAttribPointer(triangleAttrib::barycoords, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (const GLvoid*)(offsetof(Vertex, bc0)));
 }
 
 void BufferedDrawer::_initBuffer(Buffer & _buffer, GLuint _bufSize)
@@ -168,7 +168,6 @@ void BufferedDrawer::_convertFromSPVertex(bool _flatColors, u32 _count, const SP
 		dst.modify = src.modify;
 		dst.bc0 = src.bc0;
 		dst.bc1 = src.bc1;
-		dst.bc2 = src.bc2;
 	}
 }
 
diff --git a/src/Graphics/OpenGLContext/opengl_BufferedDrawer.h b/src/Graphics/OpenGLContext/opengl_BufferedDrawer.h
index 7af163b5..e3288676 100644
--- a/src/Graphics/OpenGLContext/opengl_BufferedDrawer.h
+++ b/src/Graphics/OpenGLContext/opengl_BufferedDrawer.h
@@ -58,7 +58,7 @@ namespace opengl {
 			f32 r, g, b, a;
 			f32 s, t;
 			u32 modify;
-			f32 bc0, bc1, bc2;
+			f32 bc0, bc1;
 		};
 
 		void _initBuffer(Buffer & _buffer, GLuint _bufSize);
diff --git a/src/Graphics/OpenGLContext/opengl_UnbufferedDrawer.cpp b/src/Graphics/OpenGLContext/opengl_UnbufferedDrawer.cpp
index 7a6827ac..708c4a81 100644
--- a/src/Graphics/OpenGLContext/opengl_UnbufferedDrawer.cpp
+++ b/src/Graphics/OpenGLContext/opengl_UnbufferedDrawer.cpp
@@ -75,7 +75,7 @@ void UnbufferedDrawer::drawTriangles(const graphics::Context::DrawTriangleParame
 		m_cachedAttribArray->enableVertexAttribArray(triangleAttrib::barycoords, true);
 		const void * ptr = &_params.vertices->bc0;
 		if (_updateAttribPointer(triangleAttrib::barycoords, ptr))
-			glVertexAttribPointer(triangleAttrib::barycoords, 3, GL_FLOAT, GL_FALSE, sizeof(SPVertex), ptr);
+			glVertexAttribPointer(triangleAttrib::barycoords, 2, GL_FLOAT, GL_FALSE, sizeof(SPVertex), ptr);
 	}
 
 	if (isHWLightingAllowed())
diff --git a/src/GraphicsDrawer.cpp b/src/GraphicsDrawer.cpp
index 2547f3f8..8c1ed99c 100644
--- a/src/GraphicsDrawer.cpp
+++ b/src/GraphicsDrawer.cpp
@@ -62,7 +62,6 @@ void GraphicsDrawer::addTriangle(u32 _v0, u32 _v1, u32 _v2)
 		SPVertex& vtx = triangles.vertices[triangles.elements[i]];
 		vtx.bc0 = i - firstIndex == 0 ? 1.0f : 0.0f;
 		vtx.bc1 = i - firstIndex == 1 ? 1.0f : 0.0f;
-		vtx.bc2 = i - firstIndex == 2 ? 1.0f : 0.0f;
 	}
 
 	if ((gSP.geometryMode & G_LIGHTING) == 0) {
@@ -863,7 +862,6 @@ void GraphicsDrawer::drawScreenSpaceTriangle(u32 _numVtx, graphics::DrawModePara
 
 		vtx.bc0 = (i % 3 == 0) ? 1.0f : 0.0f;
 		vtx.bc1 = (i % 3 == 1) ? 1.0f : 0.0f;
-		vtx.bc2 = (i % 3 == 2) ? 1.0f : 0.0f;
 	}
 	m_modifyVertices = MODIFY_ALL;
 
diff --git a/src/gSP.h b/src/gSP.h
index 1f753ab4..7aab7dae 100644
--- a/src/gSP.h
+++ b/src/gSP.h
@@ -40,7 +40,7 @@ struct SPVertex
 	f32 r, g, b, a;
 	f32 flat_r, flat_g, flat_b, flat_a;
 	f32 s, t;
-	f32 bc0, bc1, bc2;
+	f32 bc0, bc1;
 	u32 modify;
 	u8 HWLight;
 	u8 clip;