[Hgengine-cvs] SF.net SVN: hgengine:[448] Mercury2/src

[<axl...@us...>]

Revision: 448
          http://hgengine.svn.sourceforge.net/hgengine/?rev=448&view=rev
Author:   axlecrusher
Date:     2009-08-01 14:14:27 +0000 (Sat, 01 Aug 2009)

Log Message:
-----------
add depth range uniform for shaders

Modified Paths:
--------------
    Mercury2/src/Frustum.h
    Mercury2/src/Viewport.cpp

Modified: Mercury2/src/Frustum.h
===================================================================
--- Mercury2/src/Frustum.h	2009-08-01 02:46:05 UTC (rev 447)
+++ Mercury2/src/Frustum.h	2009-08-01 14:14:27 UTC (rev 448)
@@ -25,6 +25,9 @@
 		void Ortho(float left, float right, float bottom, float top, float near, float far);
 		
 		inline const MercuryPlane& GetPlane(int i) const { return m_planes[i]; }
+		inline float ZNear() const { return m_zNear; }
+		inline float ZFar() const { return m_zFar; }
+		inline float DepthRange() const { return m_zFar - m_zNear; }
 	private:
 		
 		MercuryPlane m_planes[6];

Modified: Mercury2/src/Viewport.cpp
===================================================================
--- Mercury2/src/Viewport.cpp	2009-08-01 02:46:05 UTC (rev 447)
+++ Mercury2/src/Viewport.cpp	2009-08-01 14:14:27 UTC (rev 448)
@@ -53,6 +53,13 @@
 	sa.type = ShaderAttribute::TYPE_INT4;
 	glGetIntegerv(GL_VIEWPORT, sa.value.iInts);
 	Shader::SetAttribute("HG_ViewPort", sa);
+
+	sa.type = ShaderAttribute::TYPE_FLOATV4;
+	sa.value.fFloatV4[0] = m_frustum.ZNear();
+	sa.value.fFloatV4[1] = m_frustum.ZFar();
+	sa.value.fFloatV4[2] = m_frustum.DepthRange();
+	sa.value.fFloatV4[3] = 1.0f/m_frustum.DepthRange();
+	Shader::SetAttribute("HG_DepthRange", sa);
 }
 
 void Viewport::PostRender(const MercuryMatrix& matrix)


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