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Playing with glPointParameterfEXT.

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This commit is contained in:
curt 2002-10-17 04:34:32 +00:00
parent 050f44adc8
commit 55b7dc661e
1 changed files with 37 additions and 14 deletions

51
src/Main/main.cxx
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@ -133,9 +133,24 @@ SG_USING_STD(endl);
#include <FDM/ADA.hxx> #include <FDM/ADA.hxx>
#include <Scenery/tileentry.hxx> #include <Scenery/tileentry.hxx>
#if ( WIN32 )
// #define FG_EXPERIMENTAL_LIGHTING
#ifdef WIN32
typedef void (APIENTRY * PFNGLPOINTPARAMETERFEXTPROC)(GLenum pname,
GLfloat param);
typedef void (APIENTRY * PFNGLPOINTPARAMETERFVEXTPROC)(GLenum pname,
const GLfloat *params);
PFNGLPOINTPARAMETERFEXTPROC glPointParameterfEXT = 0; PFNGLPOINTPARAMETERFEXTPROC glPointParameterfEXT = 0;
PFNGLPOINTPARAMETERFVEXTPROC glPointParameterfvEXT = 0; PFNGLPOINTPARAMETERFVEXTPROC glPointParameterfvEXT = 0;
#elif linux
#include <GL/glx.h>
typedef void (* OpenGLFuncExt)(GLenum pname, GLfloat param);
typedef void (* OpenGLFuncExtv)(GLenum pname, const GLfloat *params);
OpenGLFuncExt glPointParameterfEXT = 0;
OpenGLFuncExtv glPointParameterfvEXT = 0;
#endif #endif
float default_attenuation[3] = {1.0, 0.0, 0.0}; float default_attenuation[3] = {1.0, 0.0, 0.0};
@ -719,32 +734,24 @@ void fgRenderFrame() {
// Set punch through fog density // Set punch through fog density
glFogf (GL_FOG_DENSITY, fog_exp2_punch_through); glFogf (GL_FOG_DENSITY, fog_exp2_punch_through);
// #define FG_EXPERIMENTAL_LIGHTING ssgSetNearFar( scene_nearplane, scene_farplane );
ssgCullAndDraw( globals->get_scenery()->get_gnd_lights_root() );
#ifdef FG_EXPERIMENTAL_LIGHTING #ifdef FG_EXPERIMENTAL_LIGHTING
// Enable states for drawing points with GL_extension // Enable states for drawing points with GL_extension
if (glutExtensionSupported("GL_EXT_point_parameters")) { if (glutExtensionSupported("GL_EXT_point_parameters")) {
glEnable(GL_POINT_SMOOTH); glEnable(GL_POINT_SMOOTH);
float quadratic[3] = {1.0, 0.01, 0.00001}; float quadratic[3] = {1.0, 0.001, 0.0000001};
// get the address of our OpenGL extensions
#if defined(WIN32)
glPointParameterfEXT = (PFNGLPOINTPARAMETERFEXTPROC)
wglGetProcAddress("glPointParameterfEXT");
glPointParameterfvEXT = (PFNGLPOINTPARAMETERFVEXTPROC)
wglGetProcAddress("glPointParameterfvEXT");
#endif
// makes the points fade as they move away // makes the points fade as they move away
glPointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT, quadratic); glPointParameterfvEXT(GL_DISTANCE_ATTENUATION_EXT, quadratic);
glPointParameterfEXT(GL_POINT_SIZE_MIN_EXT, 1.0); glPointParameterfEXT(GL_POINT_SIZE_MIN_EXT, 1.0);
glPointSize(8.0); glPointSize(4.0);
} }
// blending function for runway lights // blending function for runway lights
glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) ; glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA) ;
#endif #endif
ssgSetNearFar( scene_nearplane, scene_farplane );
ssgCullAndDraw( globals->get_scenery()->get_gnd_lights_root() );
glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP); glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP); glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
glEnable(GL_TEXTURE_GEN_S); glEnable(GL_TEXTURE_GEN_S);
@ -772,6 +779,7 @@ void fgRenderFrame() {
} }
glPointSize(1.0); glPointSize(1.0);
glDisable(GL_POINT_SMOOTH);
#endif #endif
if ( fgGetBool("/sim/rendering/skyblend") ) { if ( fgGetBool("/sim/rendering/skyblend") ) {
@ -1567,6 +1575,21 @@ int mainLoop( int argc, char **argv ) {
glTexEnvf( GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, -0.5 ) ; glTexEnvf( GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, -0.5 ) ;
#endif #endif
#ifdef FG_EXPERIMENTAL_LIGHTING
// get the address of our OpenGL extensions
# ifdef WIN32
glPointParameterfEXT = (PFNGLPOINTPARAMETERFEXTPROC)
wglGetProcAddress("glPointParameterfEXT");
glPointParameterfvEXT = (PFNGLPOINTPARAMETERFVEXTPROC)
wglGetProcAddress("glPointParameterfvEXT");
# elif linux
glPointParameterfEXT = (OpenGLFuncExt)
glXGetProcAddressARB((GLubyte *)"glPointParameterfEXT");
glPointParameterfvEXT = (OpenGLFuncExtv)
glXGetProcAddressARB((GLubyte *)"glPointParameterfvEXT");
# endif
#endif
// Set position relative to glide slope if requested // Set position relative to glide slope if requested
fgSetPosFromGlideSlope(); fgSetPosFromGlideSlope();