/*
** RB_DrawSun
*/
void RB_DrawSun( float scale, shader_t *shader ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
byte sunColor[4] = { 255, 255, 255, 255 };
if ( !backEnd.skyRenderedThisView ) {
return;
}
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
size = dist * scale;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
RB_BeginSurface( shader, 0 );
RB_AddQuadStamp(origin, vec1, vec2, sunColor);
RB_EndSurface();
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
/*
==============
RB_SurfaceSprite
==============
*/
static void RB_SurfaceSprite( void ) {
vec3_t left, up;
float radius;
float colors[4];
trRefEntity_t *ent = backEnd.currentEntity;
// calculate the xyz locations for the four corners
radius = ent->e.radius;
if ( ent->e.rotation == 0 ) {
VectorScale( backEnd.viewParms.or.axis[1], radius, left );
VectorScale( backEnd.viewParms.or.axis[2], radius, up );
} else {
float s, c;
float ang;
ang = M_PI * ent->e.rotation / 180;
s = sin( ang );
c = cos( ang );
VectorScale( backEnd.viewParms.or.axis[1], c * radius, left );
VectorMA( left, -s * radius, backEnd.viewParms.or.axis[2], left );
VectorScale( backEnd.viewParms.or.axis[2], c * radius, up );
VectorMA( up, s * radius, backEnd.viewParms.or.axis[1], up );
}
if ( backEnd.viewParms.isMirror ) {
VectorSubtract( vec3_origin, left, left );
}
VectorScale4(ent->e.shaderRGBA, 1.0f / 255.0f, colors);
RB_AddQuadStamp( ent->e.origin, left, up, colors );
}
/*
** RB_DrawSun
*/
void RB_DrawSun( float scale, shader_t *shader ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
if ( !backEnd.skyRenderedThisView ) {
return;
}
//qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
//qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
{
// FIXME: this could be a lot cleaner
mat4_t translation, modelview;
Mat4Translation( backEnd.viewParms.or.origin, translation );
Mat4Multiply( backEnd.viewParms.world.modelMatrix, translation, modelview );
GL_SetModelviewMatrix( modelview );
}
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
size = dist * scale;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
RB_BeginSurface( shader, 0, 0 );
RB_AddQuadStamp(origin, vec1, vec2, colorWhite);
RB_EndSurface();
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
/*
** RB_DrawSun
*/
void RB_DrawSun( float scale, shader_t *shader ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
//vec3_t temp;
byte sunColor[4] = { 255, 255, 255, 255 };
if ( !backEnd.skyRenderedThisView ) {
return;
}
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
//size = dist * 0.4;
size = dist * scale;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
#if 0 // ioquake3 takes out
// FIXME: use quad stamp
RB_BeginSurface( tr.sunShader, tess.fogNum );
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
#endif
RB_BeginSurface( shader, 0 );
RB_AddQuadStamp(origin, vec1, vec2, sunColor);
RB_EndSurface();
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
/*
==============
RB_DrawSun
(SA) FIXME: sun should render behind clouds, so passing dark areas cover it up
==============
*/
void RB_DrawSun( void ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
byte color[4];
if ( !tr.sunShader ) {
return;
}
if ( !backEnd.skyRenderedThisView ) {
return;
}
if ( !r_drawSun->integer ) {
return;
}
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
qglTranslatef( backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2] );
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
// (SA) shrunk the size of the sun
size = dist * 0.2;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
color[0] = color[1] = color[2] = color[3] = 255;
// (SA) simpler sun drawing
RB_BeginSurface( tr.sunShader, tess.fogNum );
RB_AddQuadStamp( origin, vec1, vec2, color );
/*
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
*/
RB_EndSurface();
if ( r_drawSun->integer > 1 ) { // draw flare effect
// (SA) FYI: This is cheezy and was only a test so far.
// If we decide to use the flare business I will /definatly/ improve all this
// get a point a little closer
dist = dist * 0.7;
VectorScale( tr.sunDirection, dist, origin );
// and make the flare a little smaller
VectorScale( vec1, 0.5f, vec1 );
VectorScale( vec2, 0.5f, vec2 );
// add the vectors to give an 'off angle' result
VectorAdd( tr.sunDirection, backEnd.viewParms.or.axis[0], temp );
VectorNormalize( temp );
// amplify the result
origin[0] += temp[0] * 500.0;
origin[1] += temp[1] * 500.0;
origin[2] += temp[2] * 500.0;
// (SA) FIXME: todo: flare effect should render last (on top of everything else) and only when sun is in view (sun moving out of camera past degree n should start to cause flare dimming until view angle to sun is off by angle n + x.
// draw the flare
RB_BeginSurface( tr.sunflareShader[0], tess.fogNum );
RB_AddQuadStamp( origin, vec1, vec2, color );
RB_EndSurface();
}
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
/*
==============
RB_DrawSun
(SA) FIXME: sun should render behind clouds, so passing dark areas cover it up
==============
*/
void RB_DrawSun( float scale, shader_t *shader ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
// vec4_t color;
if ( !shader ) {
return;
}
if ( !backEnd.skyRenderedThisView ) {
return;
}
//qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
//qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
{
// FIXME: this could be a lot cleaner
mat4_t translation, modelview;
Mat4Translation( backEnd.viewParms.or.origin, translation );
Mat4Multiply( backEnd.viewParms.world.modelMatrix, translation, modelview );
GL_SetModelviewMatrix( modelview );
}
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
// (SA) shrunk the size of the sun
size = dist * scale;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
RB_BeginSurface( shader, 0, 0 );
// color[0] = color[1] = color[2] = color[3] = 1;
RB_AddQuadStamp(origin, vec1, vec2, colorWhite);
RB_EndSurface();
if ( r_drawSun->integer > 1 ) { // draw flare effect
// (SA) FYI: This is cheezy and was only a test so far.
// If we decide to use the flare business I will /definatly/ improve all this
// get a point a little closer
dist = dist * 0.7;
VectorScale( tr.sunDirection, dist, origin );
// and make the flare a little smaller
VectorScale( vec1, 0.5f, vec1 );
VectorScale( vec2, 0.5f, vec2 );
// add the vectors to give an 'off angle' result
VectorAdd( tr.sunDirection, backEnd.viewParms.or.axis[0], temp );
VectorNormalize( temp );
// amplify the result
origin[0] += temp[0] * 500.0;
origin[1] += temp[1] * 500.0;
origin[2] += temp[2] * 500.0;
// (SA) FIXME: todo: flare effect should render last (on top of everything else) and only when sun is in view (sun moving out of camera past degree n should start to cause flare dimming until view angle to sun is off by angle n + x.
// draw the flare
RB_BeginSurface( tr.sunflareShader_old[0], 0, 0 );
RB_AddQuadStamp( origin, vec1, vec2, colorWhite );
RB_EndSurface();
}
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
