//-----------------------------------------------------------------------
void RenderSystem::_setTextureUnitSettings(size_t texUnit, TextureUnitState& tl)
{
// This method is only ever called to set a texture unit to valid details
// The method _disableTextureUnit is called to turn a unit off
const TexturePtr& tex = tl._getTexturePtr();
// Vertex texture binding?
if (mCurrentCapabilities->hasCapability(RSC_VERTEX_TEXTURE_FETCH) &&
!mCurrentCapabilities->getVertexTextureUnitsShared())
{
if (tl.getBindingType() == TextureUnitState::BT_VERTEX)
{
// Bind vertex texture
_setVertexTexture(texUnit, tex);
// bind nothing to fragment unit (hardware isn't shared but fragment
// unit can't be using the same index
_setTexture(texUnit, true, sNullTexPtr);
}
else
{
// vice versa
_setVertexTexture(texUnit, sNullTexPtr);
_setTexture(texUnit, true, tex);
}
}
else
{
// Shared vertex / fragment textures or no vertex texture support
// Bind texture (may be blank)
_setTexture(texUnit, true, tex);
}
// Set texture coordinate set
_setTextureCoordSet(texUnit, tl.getTextureCoordSet());
// Set texture layer filtering
_setTextureUnitFiltering(texUnit,
tl.getTextureFiltering(FT_MIN),
tl.getTextureFiltering(FT_MAG),
tl.getTextureFiltering(FT_MIP));
// Set texture layer filtering
_setTextureLayerAnisotropy(texUnit, tl.getTextureAnisotropy());
// Set mipmap biasing
_setTextureMipmapBias(texUnit, tl.getTextureMipmapBias());
// Set blend modes
// Note, colour before alpha is important
_setTextureBlendMode(texUnit, tl.getColourBlendMode());
_setTextureBlendMode(texUnit, tl.getAlphaBlendMode());
// Texture addressing mode
const TextureUnitState::UVWAddressingMode& uvw = tl.getTextureAddressingMode();
_setTextureAddressingMode(texUnit, uvw);
// Set texture border colour only if required
if (uvw.u == TextureUnitState::TAM_BORDER ||
uvw.v == TextureUnitState::TAM_BORDER ||
uvw.w == TextureUnitState::TAM_BORDER)
{
_setTextureBorderColour(texUnit, tl.getTextureBorderColour());
}
// Set texture effects
TextureUnitState::EffectMap::iterator effi;
// Iterate over new effects
bool anyCalcs = false;
for (effi = tl.mEffects.begin(); effi != tl.mEffects.end(); ++effi)
{
switch (effi->second.type)
{
case TextureUnitState::ET_ENVIRONMENT_MAP:
if (effi->second.subtype == TextureUnitState::ENV_CURVED)
{
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP);
anyCalcs = true;
}
else if (effi->second.subtype == TextureUnitState::ENV_PLANAR)
{
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP_PLANAR);
anyCalcs = true;
}
else if (effi->second.subtype == TextureUnitState::ENV_REFLECTION)
{
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP_REFLECTION);
anyCalcs = true;
}
else if (effi->second.subtype == TextureUnitState::ENV_NORMAL)
{
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP_NORMAL);
anyCalcs = true;
}
break;
case TextureUnitState::ET_UVSCROLL:
case TextureUnitState::ET_USCROLL:
case TextureUnitState::ET_VSCROLL:
case TextureUnitState::ET_ROTATE:
case TextureUnitState::ET_TRANSFORM:
break;
case TextureUnitState::ET_PROJECTIVE_TEXTURE:
_setTextureCoordCalculation(texUnit, TEXCALC_PROJECTIVE_TEXTURE,
effi->second.frustum);
anyCalcs = true;
break;
}
}
// Ensure any previous texcoord calc settings are reset if there are now none
if (!anyCalcs)
{
_setTextureCoordCalculation(texUnit, TEXCALC_NONE);
}
// Change tetxure matrix
_setTextureMatrix(texUnit, tl.getTextureTransform());
}
//-----------------------------------------------------------------------
void RenderSystem::_setTextureUnitSettings(int texUnit, Material::TextureLayer& tl) {
// This method is only ever called to set a texture unit to valid details
// The method _disableTextureUnit is called to turn a unit off
Material::TextureLayer& curr = mTextureUnits[texUnit];
bool currIsBlank = curr.isBlank();
// Texture name
String texName = tl.getTextureName();
if (currIsBlank || curr.getTextureName() != texName) {
_setTexture(texUnit, true, texName);
}
// Set texture coordinate set
int coordSet = tl.getTextureCoordSet();
if (currIsBlank || curr.getTextureCoordSet() != coordSet) {
_setTextureCoordSet(texUnit, coordSet);
}
// Set texture layer filtering
TextureFilterOptions texLayerFilterOps = tl.getTextureLayerFiltering();
if (currIsBlank || curr.getTextureLayerFiltering() != texLayerFilterOps) {
_setTextureLayerFiltering(texUnit, texLayerFilterOps);
}
// Set texture layer filtering
int tMaxAniso = tl.getTextureAnisotropy();
if (currIsBlank || curr.getTextureAnisotropy() != tMaxAniso) {
_setTextureLayerAnisotropy(texUnit, tMaxAniso);
}
// Set blend modes
LayerBlendModeEx newBlend = tl.getColourBlendMode();
if (currIsBlank || curr.getColourBlendMode() != newBlend) {
_setTextureBlendMode(texUnit, newBlend);
}
newBlend = tl.getAlphaBlendMode();
if (currIsBlank || curr.getAlphaBlendMode() != newBlend) {
_setTextureBlendMode(texUnit, newBlend);
}
Material::TextureLayer::TextureAddressingMode addr = tl.getTextureAddressingMode();
// Fix: GL requires addressing mode to be set in ALL cases
// If the extra state changes in D3D become problematic, refactor this
//if (currIsBlank || curr.getTextureAddressingMode() != addr)
//{
_setTextureAddressingMode(texUnit, addr );
//}
// Set texture effects
Material::TextureLayer::EffectMap::iterator effi;
bool currEnv = false;
bool currEnvPlanar = false;
bool currEnvReflection = false;
bool currEnvNormal = false;
// bool currTexMod = false;
// Iterate over current effects
for (effi = curr.mEffects.begin(); effi != curr.mEffects.end(); ++effi) {
switch (effi->second.type) {
case Material::TextureLayer::ET_ENVIRONMENT_MAP:
if (effi->second.subtype == Material::TextureLayer::ENV_CURVED) {
currEnv = true;
} else if (effi->second.subtype == Material::TextureLayer::ENV_PLANAR) {
currEnvPlanar = true;
} else if (effi->second.subtype == Material::TextureLayer::ENV_REFLECTION) {
currEnvReflection = true;
} else if (effi->second.subtype == Material::TextureLayer::ENV_NORMAL) {
currEnvNormal = true;
}
break;
case Material::TextureLayer::ET_BUMP_MAP:
case Material::TextureLayer::ET_SCROLL:
case Material::TextureLayer::ET_ROTATE:
case Material::TextureLayer::ET_TRANSFORM:
break;
}
}
// Iterate over new effects
bool anyCalcs = false;
for (effi = tl.mEffects.begin(); effi != tl.mEffects.end(); ++effi) {
switch (effi->second.type) {
case Material::TextureLayer::ET_ENVIRONMENT_MAP:
if (effi->second.subtype == Material::TextureLayer::ENV_CURVED) {
if (currIsBlank || !currEnv) {
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP);
}
anyCalcs = true;
} else if (effi->second.subtype == Material::TextureLayer::ENV_PLANAR) {
if (currIsBlank || !currEnvPlanar) {
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP_PLANAR);
}
anyCalcs = true;
} else if (effi->second.subtype == Material::TextureLayer::ENV_REFLECTION) {
if (currIsBlank || !currEnvReflection) {
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP_REFLECTION);
}
anyCalcs = true;
} else if (effi->second.subtype == Material::TextureLayer::ENV_NORMAL) {
if (currIsBlank || !currEnvNormal) {
_setTextureCoordCalculation(texUnit, TEXCALC_ENVIRONMENT_MAP_NORMAL);
}
anyCalcs = true;
}
break;
case Material::TextureLayer::ET_BUMP_MAP:
case Material::TextureLayer::ET_SCROLL:
case Material::TextureLayer::ET_ROTATE:
case Material::TextureLayer::ET_TRANSFORM:
break;
}
}
// Ensure any previous texcoord calc settings are reset if there are now none
if ((!anyCalcs) &&
(currEnv || currEnvPlanar || currEnvReflection || currEnvNormal)) {
_setTextureCoordCalculation(texUnit, TEXCALC_NONE);
_setTextureCoordSet(texUnit, tl.getTextureCoordSet());
}
// Change tetxure matrix if required
// NB concatenate with any existing texture matrix created for generate
const Matrix4& xform = tl.getTextureTransform();
if( !(curr.getTextureTransform() == xform )) {
_setTextureMatrix(texUnit, xform);
}
// Set alpha rejection
unsigned char alphaVal = tl.getAlphaRejectValue();
CompareFunction alphaFunc = tl.getAlphaRejectFunction();
if (currIsBlank ||
(curr.getAlphaRejectFunction() != alphaFunc) ||
(curr.getAlphaRejectValue() != alphaVal)) {
_setAlphaRejectSettings(alphaFunc, alphaVal);
}
// Now that the changes have been made, update the record of current texture unit settings
curr = tl;
}