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further improvements from Erik Pojar

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This commit is contained in:
David Rose 2008-10-30 00:38:20 +00:00
parent dde2109d07
commit 05dbe116e4
1 changed files with 92 additions and 0 deletions
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92
pandatool/src/bam/bamToEgg.cxx
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@ -24,6 +24,8 @@
#include "colorAttrib.h" #include "colorAttrib.h"
#include "textureAttrib.h" #include "textureAttrib.h"
#include "cullFaceAttrib.h" #include "cullFaceAttrib.h"
#include "transparencyAttrib.h"
#include "depthWriteAttrib.h"
#include "lodNode.h" #include "lodNode.h"
#include "switchNode.h" #include "switchNode.h"
#include "sequenceNode.h" #include "sequenceNode.h"
@ -32,6 +34,7 @@
#include "collisionPlane.h" #include "collisionPlane.h"
#include "collisionSphere.h" #include "collisionSphere.h"
#include "collisionInvSphere.h" #include "collisionInvSphere.h"
#include "textureStage.h"
#include "geomNode.h" #include "geomNode.h"
#include "geom.h" #include "geom.h"
#include "geomTriangles.h" #include "geomTriangles.h"
@ -46,6 +49,7 @@
#include "eggPolygon.h" #include "eggPolygon.h"
#include "eggTexture.h" #include "eggTexture.h"
#include "eggMaterial.h" #include "eggMaterial.h"
#include "eggRenderMode.h"
#include "somethingToEggConverter.h" #include "somethingToEggConverter.h"
#include "dcast.h" #include "dcast.h"
#include "pystub.h" #include "pystub.h"
@ -448,6 +452,39 @@ convert_triangles(const GeomVertexData *vertex_data,
egg_tex = get_egg_texture(ta->get_texture()); egg_tex = get_egg_texture(ta->get_texture());
} }
// Check the texture environment
if ((ta != (const TextureAttrib *)NULL) && (egg_tex != (const EggTexture *)NULL)) {
TextureStage* tex_stage = ta->get_on_stage(0);
if (tex_stage != (const TextureStage *)NULL) {
switch (tex_stage->get_mode()) {
case TextureStage::M_modulate:
if (has_color_off == true) {
egg_tex->set_env_type(EggTexture::ET_replace);
} else {
egg_tex->set_env_type(EggTexture::ET_modulate);
}
break;
case TextureStage::M_decal:
egg_tex->set_env_type(EggTexture::ET_decal);
break;
case TextureStage::M_blend:
egg_tex->set_env_type(EggTexture::ET_blend);
break;
case TextureStage::M_replace:
egg_tex->set_env_type(EggTexture::ET_replace);
break;
case TextureStage::M_add:
egg_tex->set_env_type(EggTexture::ET_add);
break;
case TextureStage::M_blend_color_scale:
egg_tex->set_env_type(EggTexture::ET_blend_color_scale);
break;
default:
break;
}
}
}
// Check the backface flag. // Check the backface flag.
bool bface = false; bool bface = false;
const RenderAttrib *cf_attrib = net_state->get_attrib(CullFaceAttrib::get_class_type()); const RenderAttrib *cf_attrib = net_state->get_attrib(CullFaceAttrib::get_class_type());
@ -458,6 +495,61 @@ convert_triangles(const GeomVertexData *vertex_data,
} }
} }
// Check the depth write flag - only needed for AM_blend_no_occlude
bool has_depthwrite = false;
DepthWriteAttrib::Mode depthwrite = DepthWriteAttrib::M_on;
const RenderAttrib *dw_attrib = net_state->get_attrib(DepthWriteAttrib::get_class_type());
if (dw_attrib != (const RenderAttrib *)NULL) {
const DepthWriteAttrib *dwa = DCAST(DepthWriteAttrib, dw_attrib);
depthwrite = dwa->get_mode();
has_depthwrite = true;
}
// Check the transparency flag.
bool has_transparency = false;
TransparencyAttrib::Mode transparency = TransparencyAttrib::M_none;
const RenderAttrib *tr_attrib = net_state->get_attrib(TransparencyAttrib::get_class_type());
if (tr_attrib != (const RenderAttrib *)NULL) {
const TransparencyAttrib *tra = DCAST(TransparencyAttrib, tr_attrib);
transparency = tra->get_mode();
has_transparency = true;
}
if (has_transparency && (egg_tex != (EggTexture *)NULL)) {
EggRenderMode::AlphaMode tex_trans = EggRenderMode::AM_unspecified;
switch (transparency) {
case TransparencyAttrib::M_none:
tex_trans = EggRenderMode::AM_off;
break;
case TransparencyAttrib::M_alpha:
if (has_depthwrite && (depthwrite == DepthWriteAttrib::M_off)) {
tex_trans = EggRenderMode::AM_blend_no_occlude;
has_depthwrite = false;
} else {
tex_trans = EggRenderMode::AM_blend;
}
break;
case TransparencyAttrib::M_multisample:
tex_trans = EggRenderMode::AM_ms;
break;
case TransparencyAttrib::M_multisample_mask:
tex_trans = EggRenderMode::AM_ms_mask;
break;
case TransparencyAttrib::M_binary:
tex_trans = EggRenderMode::AM_binary;
break;
case TransparencyAttrib::M_dual:
tex_trans = EggRenderMode::AM_dual;
break;
default: // intentional fall-through
case TransparencyAttrib::M_notused:
break;
}
if (tex_trans != EggRenderMode::AM_unspecified) {
egg_tex->set_alpha_mode(tex_trans);
}
}
Normalf normal; Normalf normal;
Colorf color; Colorf color;