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Huge renderer update (WIP). Still plenty to do, especially pertaining to UI.

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-Nametag bubble visbility is oddly inconsistent. May vanish with future planned UI merges...
-VBOs are PAINFULLY slow on ATI hardware. This repos self-compiled davep/shining-fixes branch, so I'll leave the ball in LL's court for now regarding that.
This commit is contained in:
Shyotl
2011-12-09 14:02:29 -06:00
parent 8e7733b2ce
commit ffb285c6ff
499 changed files with 22321 additions and 12356 deletions
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98
indra/llrender/llrendersphere.cpp
View File

@@ -41,106 +41,12 @@
#include "llglheaders.h"
GLUquadricObj *gQuadObj2 = NULL;
LLRenderSphere gSphere;
void drawSolidSphere(GLdouble radius, GLint slices, GLint stacks);
void drawSolidSphere(GLdouble radius, GLint slices, GLint stacks)
{
if (!gQuadObj2)
{
gQuadObj2 = gluNewQuadric();
if (!gQuadObj2)
{
llwarns << "drawSolidSphere couldn't allocate quadric" << llendl;
return;
}
}
gluQuadricDrawStyle(gQuadObj2, GLU_FILL);
gluQuadricNormals(gQuadObj2, GLU_SMOOTH);
// If we ever changed/used the texture or orientation state
// of quadObj, we'd need to change it to the defaults here
// with gluQuadricTexture and/or gluQuadricOrientation.
gluQuadricTexture(gQuadObj2, GL_TRUE);
gluSphere(gQuadObj2, radius, slices, stacks);
}
// A couple thoughts on sphere drawing:
// 1) You need more slices than stacks, but little less than 2:1
// 2) At low LOD, setting stacks to an odd number avoids a "band" around the equator, making things look smoother
void LLRenderSphere::prerender()
{
// Create a series of display lists for different LODs
mDList[0] = glGenLists(1);
glNewList(mDList[0], GL_COMPILE);
drawSolidSphere(1.0, 30, 20);
glEndList();
mDList[1] = glGenLists(1);
glNewList(mDList[1], GL_COMPILE);
drawSolidSphere(1.0, 20, 15);
glEndList();
mDList[2] = glGenLists(1);
glNewList(mDList[2], GL_COMPILE);
drawSolidSphere(1.0, 12, 8);
glEndList();
mDList[3] = glGenLists(1);
glNewList(mDList[3], GL_COMPILE);
drawSolidSphere(1.0, 8, 5);
glEndList();
}
void LLRenderSphere::cleanupGL()
{
for (S32 detail = 0; detail < 4; detail++)
{
glDeleteLists(mDList[detail], 1);
mDList[detail] = 0;
}
if (gQuadObj2)
{
gluDeleteQuadric(gQuadObj2);
gQuadObj2 = NULL;
}
}
// Constants here are empirically derived from my eyeballs, JNC
//
// The toughest adjustment is the cutoff for the lowest LOD
// Maybe we should have more LODs at the low end?
void LLRenderSphere::render(F32 pixel_area)
{
S32 level_of_detail;
if (pixel_area > 10000.f)
{
level_of_detail = 0;
}
else if (pixel_area > 800.f)
{
level_of_detail = 1;
}
else if (pixel_area > 100.f)
{
level_of_detail = 2;
}
else
{
level_of_detail = 3;
}
glCallList(mDList[level_of_detail]);
}
void LLRenderSphere::render()
{
glCallList(mDList[0]);
renderGGL();
gGL.flush();
}
inline LLVector3 polar_to_cart(F32 latitude, F32 longitude)