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-rw-r--r--indra/llrender/llcubemap.cpp275
1 files changed, 79 insertions, 196 deletions
diff --git a/indra/llrender/llcubemap.cpp b/indra/llrender/llcubemap.cpp
index 834084674e..254288a86e 100644
--- a/indra/llrender/llcubemap.cpp
+++ b/indra/llrender/llcubemap.cpp
@@ -40,8 +40,9 @@
#include "llglheaders.h"
-const F32 epsilon = 1e-7f;
-const U16 RESOLUTION = 64;
+namespace {
+ const U16 RESOLUTION = 64;
+}
bool LLCubeMap::sUseCubeMaps = true;
@@ -50,12 +51,12 @@ LLCubeMap::LLCubeMap(bool init_as_srgb)
mMatrixStage(0),
mIssRGB(init_as_srgb)
{
- mTargets[0] = GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB;
- mTargets[1] = GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB;
- mTargets[2] = GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB;
- mTargets[3] = GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB;
- mTargets[4] = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB;
- mTargets[5] = GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB;
+ mTargets[0] = GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
+ mTargets[1] = GL_TEXTURE_CUBE_MAP_POSITIVE_X;
+ mTargets[2] = GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
+ mTargets[3] = GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
+ mTargets[4] = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
+ mTargets[5] = GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
}
LLCubeMap::~LLCubeMap()
@@ -66,7 +67,7 @@ void LLCubeMap::initGL()
{
llassert(gGLManager.mInited);
- if (gGLManager.mHasCubeMap && LLCubeMap::sUseCubeMaps)
+ if (LLCubeMap::sUseCubeMaps)
{
// Not initialized, do stuff.
if (mImages[0].isNull())
@@ -166,6 +167,73 @@ void LLCubeMap::init(const std::vector<LLPointer<LLImageRaw> >& rawimages)
}
}
+void LLCubeMap::initReflectionMap(U32 resolution, U32 components)
+{
+ U32 texname = 0;
+
+ LLImageGL::generateTextures(1, &texname);
+
+ mImages[0] = new LLImageGL(resolution, resolution, components, TRUE);
+ mImages[0]->setTexName(texname);
+ mImages[0]->setTarget(mTargets[0], LLTexUnit::TT_CUBE_MAP);
+ gGL.getTexUnit(0)->bindManual(LLTexUnit::TT_CUBE_MAP, texname);
+ mImages[0]->setAddressMode(LLTexUnit::TAM_CLAMP);
+}
+
+void LLCubeMap::initEnvironmentMap(const std::vector<LLPointer<LLImageRaw> >& rawimages)
+{
+ llassert(rawimages.size() == 6);
+
+ U32 texname = 0;
+
+ LLImageGL::generateTextures(1, &texname);
+
+ U32 resolution = rawimages[0]->getWidth();
+ U32 components = rawimages[0]->getComponents();
+
+ for (int i = 0; i < 6; i++)
+ {
+ llassert(rawimages[i]->getWidth() == resolution);
+ llassert(rawimages[i]->getHeight() == resolution);
+ llassert(rawimages[i]->getComponents() == components);
+
+ mImages[i] = new LLImageGL(resolution, resolution, components, TRUE);
+ mImages[i]->setTarget(mTargets[i], LLTexUnit::TT_CUBE_MAP);
+ mRawImages[i] = rawimages[i];
+ mImages[i]->createGLTexture(0, mRawImages[i], texname);
+
+ gGL.getTexUnit(0)->bindManual(LLTexUnit::TT_CUBE_MAP, texname);
+ mImages[i]->setAddressMode(LLTexUnit::TAM_CLAMP);
+ stop_glerror();
+
+ mImages[i]->setSubImage(mRawImages[i], 0, 0, resolution, resolution);
+ }
+ enableTexture(0);
+ bind();
+ mImages[0]->setFilteringOption(LLTexUnit::TFO_ANISOTROPIC);
+ glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
+ glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
+ gGL.getTexUnit(0)->disable();
+ disable();
+}
+
+void LLCubeMap::generateMipMaps()
+{
+ LL_PROFILE_ZONE_SCOPED_CATEGORY_TEXTURE;
+
+ mImages[0]->setUseMipMaps(TRUE);
+ mImages[0]->setHasMipMaps(TRUE);
+ enableTexture(0);
+ bind();
+ mImages[0]->setFilteringOption(LLTexUnit::TFO_BILINEAR);
+ {
+ LL_PROFILE_ZONE_NAMED_CATEGORY_TEXTURE("cmgmm - glGenerateMipmap");
+ glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
+ }
+ gGL.getTexUnit(0)->disable();
+ disable();
+}
+
GLuint LLCubeMap::getGLName()
{
return mImages[0]->getTexName();
@@ -184,7 +252,7 @@ void LLCubeMap::enable(S32 stage)
void LLCubeMap::enableTexture(S32 stage)
{
mTextureStage = stage;
- if (gGLManager.mHasCubeMap && stage >= 0 && LLCubeMap::sUseCubeMaps)
+ if (stage >= 0 && LLCubeMap::sUseCubeMaps)
{
gGL.getTexUnit(stage)->enable(LLTexUnit::TT_CUBE_MAP);
}
@@ -197,7 +265,7 @@ void LLCubeMap::disable(void)
void LLCubeMap::disableTexture(void)
{
- if (gGLManager.mHasCubeMap && mTextureStage >= 0 && LLCubeMap::sUseCubeMaps)
+ if (mTextureStage >= 0 && LLCubeMap::sUseCubeMaps)
{
gGL.getTexUnit(mTextureStage)->disable();
if (mTextureStage == 0)
@@ -256,191 +324,6 @@ void LLCubeMap::restoreMatrix()
}*/
}
-void LLCubeMap::setReflection (void)
-{
- gGL.getTexUnit(mTextureStage)->bindManual(LLTexUnit::TT_CUBE_MAP, getGLName());
- mImages[0]->setFilteringOption(LLTexUnit::TFO_ANISOTROPIC);
- mImages[0]->setAddressMode(LLTexUnit::TAM_CLAMP);
-}
-
-LLVector3 LLCubeMap::map(U8 side, U16 v_val, U16 h_val) const
-{
- LLVector3 dir;
-
- const U8 curr_coef = side >> 1; // 0/1 = X axis, 2/3 = Y, 4/5 = Z
- const S8 side_dir = (((side & 1) << 1) - 1); // even = -1, odd = 1
- const U8 i_coef = (curr_coef + 1) % 3;
- const U8 j_coef = (i_coef + 1) % 3;
-
- dir.mV[curr_coef] = side_dir;
-
- switch (side)
- {
- case 0: // negative X
- dir.mV[i_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- break;
- case 1: // positive X
- dir.mV[i_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = -F32((h_val<<1) + 1) / RESOLUTION + 1;
- break;
- case 2: // negative Y
- dir.mV[i_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- break;
- case 3: // positive Y
- dir.mV[i_coef] = F32((v_val<<1) + 1) / RESOLUTION - 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- break;
- case 4: // negative Z
- dir.mV[i_coef] = -F32((h_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = -F32((v_val<<1) + 1) / RESOLUTION + 1;
- break;
- case 5: // positive Z
- dir.mV[i_coef] = -F32((h_val<<1) + 1) / RESOLUTION + 1;
- dir.mV[j_coef] = F32((v_val<<1) + 1) / RESOLUTION - 1;
- break;
- default:
- dir.mV[i_coef] = F32((v_val<<1) + 1) / RESOLUTION - 1;
- dir.mV[j_coef] = F32((h_val<<1) + 1) / RESOLUTION - 1;
- }
-
- dir.normVec();
- return dir;
-}
-
-
-BOOL LLCubeMap::project(F32& v_val, F32& h_val, BOOL& outside,
- U8 side, const LLVector3& dir) const
-{
- const U8 curr_coef = side >> 1; // 0/1 = X axis, 2/3 = Y, 4/5 = Z
- const S8 side_dir = (((side & 1) << 1) - 1); // even = -1, odd = 1
- const U8 i_coef = (curr_coef + 1) % 3;
- const U8 j_coef = (i_coef + 1) % 3;
-
- outside = TRUE;
- if (side_dir * dir.mV[curr_coef] < 0)
- return FALSE;
-
- LLVector3 ray;
-
- F32 norm_val = fabs(dir.mV[curr_coef]);
-
- if (norm_val < epsilon)
- norm_val = 1e-5f;
-
- ray.mV[curr_coef] = side_dir;
- ray.mV[i_coef] = dir.mV[i_coef] / norm_val;
- ray.mV[j_coef] = dir.mV[j_coef] / norm_val;
-
-
- const F32 i_val = (ray.mV[i_coef] + 1) * 0.5f * RESOLUTION;
- const F32 j_val = (ray.mV[j_coef] + 1) * 0.5f * RESOLUTION;
-
- switch (side)
- {
- case 0: // negative X
- v_val = RESOLUTION - i_val;
- h_val = j_val;
- break;
- case 1: // positive X
- v_val = RESOLUTION - i_val;
- h_val = RESOLUTION - j_val;
- break;
- case 2: // negative Y
- v_val = RESOLUTION - i_val;
- h_val = j_val;
- break;
- case 3: // positive Y
- v_val = i_val;
- h_val = j_val;
- break;
- case 4: // negative Z
- v_val = RESOLUTION - j_val;
- h_val = RESOLUTION - i_val;
- break;
- case 5: // positive Z
- v_val = RESOLUTION - j_val;
- h_val = i_val;
- break;
- default:
- v_val = i_val;
- h_val = j_val;
- }
-
- outside = ((v_val < 0) || (v_val > RESOLUTION) ||
- (h_val < 0) || (h_val > RESOLUTION));
-
- return TRUE;
-}
-
-BOOL LLCubeMap::project(F32& v_min, F32& v_max, F32& h_min, F32& h_max,
- U8 side, LLVector3 dir[4]) const
-{
- v_min = h_min = RESOLUTION;
- v_max = h_max = 0;
-
- BOOL fully_outside = TRUE;
- for (U8 vtx = 0; vtx < 4; ++vtx)
- {
- F32 v_val, h_val;
- BOOL outside;
- BOOL consider = project(v_val, h_val, outside, side, dir[vtx]);
- if (!outside)
- fully_outside = FALSE;
- if (consider)
- {
- if (v_val < v_min) v_min = v_val;
- if (v_val > v_max) v_max = v_val;
- if (h_val < h_min) h_min = h_val;
- if (h_val > h_max) h_max = h_val;
- }
- }
-
- v_min = llmax(0.0f, v_min);
- v_max = llmin(RESOLUTION - epsilon, v_max);
- h_min = llmax(0.0f, h_min);
- h_max = llmin(RESOLUTION - epsilon, h_max);
-
- return !fully_outside;
-}
-
-
-void LLCubeMap::paintIn(LLVector3 dir[4], const LLColor4U& col)
-{
- LL_PROFILE_ZONE_SCOPED;
- F32 v_min, v_max, h_min, h_max;
- LLVector3 center = dir[0] + dir[1] + dir[2] + dir[3];
- center.normVec();
-
- for (U8 side = 0; side < 6; ++side)
- {
- if (!project(v_min, v_max, h_min, h_max, side, dir))
- continue;
-
- U8 *td = mRawImages[side]->getData();
-
- U16 v_minu = (U16) v_min;
- U16 v_maxu = (U16) (ceil(v_max) + 0.5);
- U16 h_minu = (U16) h_min;
- U16 h_maxu = (U16) (ceil(h_max) + 0.5);
-
- for (U16 v = v_minu; v < v_maxu; ++v)
- for (U16 h = h_minu; h < h_maxu; ++h)
- //for (U16 v = 0; v < RESOLUTION; ++v)
- // for (U16 h = 0; h < RESOLUTION; ++h)
- {
- const LLVector3 ray = map(side, v, h);
- if (ray * center > 0.999)
- {
- const U32 offset = (RESOLUTION * v + h) * 4;
- for (U8 cc = 0; cc < 3; ++cc)
- td[offset + cc] = U8((td[offset + cc] + col.mV[cc]) * 0.5);
- }
- }
- mImages[side]->setSubImage(mRawImages[side], 0, 0, RESOLUTION, RESOLUTION);
- }
-}
void LLCubeMap::destroyGL()
{
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