From: ouv <ouv@opencascade.com>
Date: Fri, 2 Sep 2005 06:42:15 +0000 (+0000)
Subject: Vertex Shader for ARB OpenGL extension
X-Git-Tag: BR-D5-38-2003_D2005-12-09~42
X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=0e2786db32044e85ede7e76ea56160245111a12f;p=modules%2Fvisu.git

Vertex Shader for ARB OpenGL extension
---

diff --git a/resources/Vertex_Program_ARB.txt b/resources/Vertex_Program_ARB.txt
new file mode 100755
index 00000000..d017060b
--- /dev/null
+++ b/resources/Vertex_Program_ARB.txt
@@ -0,0 +1,58 @@
+!!ARBvp1.0
+
+# Constant Parameters
+PARAM mvp[4]     = { state.matrix.mvp }; # modelview projection matrix
+PARAM constColor = program.env[0];       # constant color (defined by the application)
+PARAM constSize  = program.env[1];       # constant size
+
+# constColor.x == 1.0
+# constColor.y == 1.0
+# constColor.z == 1.0
+# constColor.w == 1.0
+
+# constSize.x  == 1.0
+# constSize.y  == 10.0
+# constSize.z  == 100.0
+# constSize.w  == 1000.0
+
+# Per-vertex inputs
+ATTRIB inPosition = vertex.position;
+ATTRIB inColor    = vertex.color;
+
+# Per-vertex outputs
+OUTPUT outPosition = result.position;
+OUTPUT outColor    = result.color;
+OUTPUT outSize     = result.pointsize;
+
+DP4 outPosition.x, mvp[0], inPosition;   # Transform the x component of the per-vertex position into clip-space
+DP4 outPosition.y, mvp[1], inPosition;   # Transform the y component of the per-vertex position into clip-space
+DP4 outPosition.z, mvp[2], inPosition;   # Transform the z component of the per-vertex position into clip-space
+DP4 outPosition.w, mvp[3], inPosition;   # Transform the w component of the per-vertex position into clip-space
+
+# Color management
+
+TEMP color1;
+TEMP color2;
+
+#MOV color1, inColor.y;
+#DP4 color2, color1, color1;
+#MOV outColor, color1;
+
+MOV outColor, inColor;                   # Use the original per-vertex color specified
+#MOV outColor, constColor;                # Uncomment this to use the constant color stored at "program.env[0]"
+
+# Size management
+
+TEMP    size1;
+
+MOV     size1,     constSize;
+
+DP4     size1.x,   inColor,     inColor;
+MUL     size1.x,   size1.x,     constSize.y;
+
+#MUL     size1.x,   size1.x,     inColor.w;
+#MUL     size1.x,   size1.x,     constSize.y;
+
+MOV     outSize,   size1;
+
+END
\ No newline at end of file