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User Submitted Code Samples - Page 4
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Simulated Radar
Sweep (OpenGL - C++) |
| Author:
Steve Butrimas
This sample demonstrates how to use a
pixel buffer to simulate the trailing
persistent after-glow of a radar's
sweep.
Relevant Keywords: wglCreatePbufferARB, wglGetPbufferDCARB,
wglReleasePbufferDCARB, wglDestroyPbufferARB,
wglQueryPbufferARB, gluNewQuadric,
gluDeleteQuadric, wglGetPixelFormatAttribivARB,
wglGetPixelFormatAttribfvARB, wglChoosePixelFormatARB,
gluOrtho2D, glViewport,
glCopyTexSubImage2D, PFNWGLCREATEPBUFFERARBPROC,
PFNWGLGETPBUFFERDCARBPROC, PFNWGLRELEASEPBUFFERDCARBPROC,
PFNWGLDESTROYPBUFFERARBPROC, PFNWGLQUERYPBUFFERARBPROC,
PFNWGLGETPIXELFORMATATTRIBIVARBPROC, PFNWGLGETPIXELFORMATATTRIBFVARBPROC,
and PFNWGLCHOOSEPIXELFORMATARBPROC.
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Cel-shading with GL_ARB_vetex_program (OpenGL - C++) |
| Author:
Simon Flannery
This sample demonstrates how to
perform cel-shading or toon-rendering
using
GL_ARB_vertex_program.
Relevant Keywords:
GL_ARB_vertex_program, glGenProgramsARB,
glDeleteProgramsARB, glBindProgramARB,
glProgramStringARB,
glProgramEnvParameter4fARB, glGetString,
wglGetProcAddress,
GL_VERTEX_PROGRAM_ARB,
GL_PROGRAM_FORMAT_ASCII_ARB,
PFNGLGENPROGRAMSARBPROC,
PFNGLDELETEPROGRAMSARBPROC,
PFNGLBINDPROGRAMARBPROC,
PFNGLPROGRAMSTRINGARBPROC,
PFNGLPROGRAMENVPARAMETER4FARBPROC,
!!ARBvp1.0, PARAM, ATTRIB, OUTPUT,
state.matrix.mvp, program.env,
vertex.position, vertex.color,
result.position, result.color,
fragment.texcoord,
fragment.color.primary, texture, TEMP,
MUL, ADD, 2D, DP3, DP4, MOV, RSQ, and
END.
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Per-pixel Lighting with GLSlang (OpenGL - C++) |
| Author:
Anudhyan Boral
This sample demonstrates how to
perform per-pixel lighting using
GLSlang.
Relevant Keywords:
wglGetProcAddress,
PFNGLCREATEPROGRAMOBJECTARBPROC,
PFNGLDELETEOBJECTARBPROC,
PFNGLUSEPROGRAMOBJECTARBPROC,
PFNGLCREATESHADEROBJECTARBPROC,
PFNGLSHADERSOURCEARBPROC,
PFNGLCOMPILESHADERARBPROC,
PFNGLGETOBJECTPARAMETERIVARBPROC,
PFNGLATTACHOBJECTARBPROC,
PFNGLGETINFOLOGARBPROC,
PFNGLLINKPROGRAMARBPROC,
PFNGLGETUNIFORMLOCATIONARBPROC,
PFNGLUNIFORM4FARBPROC,
PFNGLUNIFORM1IARBPROC,
glCreateProgramObjectARB,
glDeleteObjectARB, glUseProgramObjectARB,
glCreateShaderObjectARB,
glShaderSourceARB, glCompileShaderARB,
glGetObjectParameterivARB,
glAttachObjectARB, glGetInfoLogARB,
glLinkProgramARB,
glGetUniformLocationARB, glUniform4fARB,
glUniform1iARB, GL_VERTEX_SHADER_ARB,
GL_FRAGMENT_SHADER_ARB,
GL_OBJECT_COMPILE_STATUS_ARB,
GL_OBJECT_LINK_STATUS_ARB, GLhandleARB,
uniform sampler2D, varying vec2, varying
vec4, gl_FragColor, gl_Position,
gl_ModelViewProjectionMatrix, gl_Vertex,
gl_Color, gl_TexCoord, gl_FragColor,
gl_MultiTexCoord0,
gl_LightSource[0].position,
gl_LightSource[0].constantAttenuation,
gl_LightSource[0].linearAttenuation,
gl_LightSource[0].quadraticAttenuation,
max, dot, and normalize.
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