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Aded shaders for various combinations of layers.

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git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14637 16af8721-9629-0410-8352-f15c8da7e697
This commit is contained in:
Robert Osfield
2014-12-24 10:14:03 +00:00
parent c57e62e799
commit 18323ac899
6 changed files with 120 additions and 44 deletions
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17
src/osgTerrain/shaders/terrain_displacement_mapping_CCC_frag.cpp Normal file
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@@ -0,0 +1,17 @@
char terrain_displacement_mapping_CCC_frag[] = "uniform sampler2D colorTexture1;\n"
"uniform sampler2D colorTexture2;\n"
"uniform sampler2D colorTexture3;\n"
"\n"
"varying vec2 texcoord;\n"
"varying vec4 basecolor;\n"
"\n"
"void main(void)\n"
"{\n"
" const float multiplier = 1.0/3.0;\n"
" vec4 color = texture2D( colorTexture1, texcoord)*multiplier +\n"
" texture2D( colorTexture2, texcoord)*multiplier +\n"
" texture2D( colorTexture3, texcoord)*multiplier;\n"
"\n"
" gl_FragColor = basecolor * color;\n"
"}\n"
"\n";

15
src/osgTerrain/shaders/terrain_displacement_mapping_CC_frag.cpp Normal file
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char terrain_displacement_mapping_CC_frag[] = "uniform sampler2D colorTexture1;\n"
"uniform sampler2D colorTexture2;\n"
"\n"
"varying vec2 texcoord;\n"
"varying vec4 basecolor;\n"
"\n"
"void main(void)\n"
"{\n"
" const float multiplier = 1.0/2.0;\n"
" vec4 color = texture2D( colorTexture1, texcoord)*multiplier +\n"
" texture2D( colorTexture2, texcoord)*multiplier;\n"
"\n"
" gl_FragColor = basecolor * color;\n"
"}\n"
"\n";

11
src/osgTerrain/shaders/terrain_displacement_mapping_C_frag.cpp Normal file
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char terrain_displacement_mapping_C_frag[] = "uniform sampler2D colorTexture1;\n"
"\n"
"varying vec2 texcoord;\n"
"varying vec4 basecolor;\n"
"\n"
"void main(void)\n"
"{\n"
" vec4 color = texture2D( colorTexture1, texcoord);\n"
" gl_FragColor = basecolor * color;\n"
"}\n"
"\n";

18
src/osgTerrain/shaders/terrain_displacement_mapping_flat_vert.cpp Normal file
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@@ -0,0 +1,18 @@
char terrain_displacement_mapping_flat_vert[] = "varying vec2 texcoord;\n"
"varying vec4 basecolor;\n"
"\n"
"void main(void)\n"
"{\n"
" texcoord = gl_MultiTexCoord0.xy;\n"
"\n"
" float height_center = 0;\n"
"\n"
" // note, need to introduce a proper lighting computation based on the gl_Normal.xyz\n"
" vec3 normal = vec3(0.0, 0.0, 1.0);\n"
" float intensity = normal.z;\n"
" basecolor = vec4(intensity, intensity, intensity, 1.0);\n"
"\n"
" vec3 position = gl_Vertex.xyz + gl_Normal.xyz * height_center ;\n"
" gl_Position = gl_ModelViewProjectionMatrix * vec4(position,1.0);\n"
"};\n"
"\n";

18
src/osgTerrain/shaders/terrain_displacement_mapping_frag.cpp
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@@ -1,21 +1,7 @@
char terrain_displacement_mapping_frag[] = "uniform sampler2D colorTexture1;\n"
"uniform sampler2D colorTexture2;\n"
"uniform sampler2D colorTexture3;\n"
"\n"
"varying vec2 texcoord;\n"
"varying vec4 basecolor;\n"
char terrain_displacement_mapping_frag[] = "varying vec4 basecolor;\n"
"\n"
"void main(void)\n"
"{\n"
" float multiplier = 1.0/3.0;\n"
" vec4 color = texture2D( colorTexture1, texcoord)*multiplier +\n"
" texture2D( colorTexture2, texcoord)*multiplier +\n"
" texture2D( colorTexture3, texcoord)*multiplier;\n"
"\n"
"#if 1\n"
" gl_FragColor = basecolor * color;\n"
"#else\n"
" gl_FragColor = basecolor;//basecolor * color;\n"
"#endif\n"
" gl_FragColor = basecolor;\n"
"}\n"
"\n";