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render-to-cube-map

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This commit is contained in:
David Rose 2005-03-05 01:11:33 +00:00
parent 6b84223f19
commit dc9d3fd09e
3 changed files with 56 additions and 3 deletions
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56
panda/src/wgldisplay/wglGraphicsBuffer.cxx
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@ -26,6 +26,7 @@
TypeHandle wglGraphicsBuffer::_type_handle;
////////////////////////////////////////////////////////////////////
// Function: wglGraphicsBuffer::Constructor
// Access: Public
@ -88,6 +89,36 @@ begin_frame() {
return GraphicsBuffer::begin_frame();
}
////////////////////////////////////////////////////////////////////
// Function: wglGraphicsBuffer::select_cube_map
// Access: Public, Virtual
// Description: Called internally when the window is in
// render-to-a-texture mode and we are in the process of
// rendering the six faces of a cube map. This should
// do whatever needs to be done to switch the buffer to
// the indicated face.
////////////////////////////////////////////////////////////////////
void wglGraphicsBuffer::
select_cube_map(int cube_map_index) {
wglGraphicsStateGuardian *wglgsg;
DCAST_INTO_V(wglgsg, _gsg);
nassertv(wglgsg->_wglSetPbufferAttribARB != NULL);
static const int max_attrib_list = 64;
int iattrib_list[max_attrib_list];
int ni = 0;
iattrib_list[ni++] = WGL_CUBE_MAP_FACE_ARB;
iattrib_list[ni++] = WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + cube_map_index;
// Terminate the list.
nassertv(ni <= max_attrib_list);
iattrib_list[ni] = 0;
wglgsg->_wglSetPbufferAttribARB(_pbuffer, iattrib_list);
}
////////////////////////////////////////////////////////////////////
// Function: wglGraphicsBuffer::make_current
// Access: Public, Virtual
@ -293,6 +324,8 @@ make_pbuffer(HDC twindow_dc) {
int ni = 0;
if (_rtm_mode == RTM_bind_texture) {
nassertr(_texture != (Texture *)NULL, false);
if (_gsg->get_properties().get_frame_buffer_mode() & FrameBufferProperties::FM_alpha) {
iattrib_list[ni++] = WGL_TEXTURE_FORMAT_ARB;
iattrib_list[ni++] = WGL_TEXTURE_RGBA_ARB;
@ -300,8 +333,27 @@ make_pbuffer(HDC twindow_dc) {
iattrib_list[ni++] = WGL_TEXTURE_FORMAT_ARB;
iattrib_list[ni++] = WGL_TEXTURE_RGB_ARB;
}
iattrib_list[ni++] = WGL_TEXTURE_TARGET_ARB;
iattrib_list[ni++] = WGL_TEXTURE_2D_ARB;
if (_texture->uses_mipmaps()) {
iattrib_list[ni++] = WGL_MIPMAP_TEXTURE_ARB;
iattrib_list[ni++] = 1;
}
switch (_texture->get_texture_type()) {
case Texture::TT_cube_map:
iattrib_list[ni++] = WGL_TEXTURE_TARGET_ARB;
iattrib_list[ni++] = WGL_TEXTURE_CUBE_MAP_ARB;
break;
case Texture::TT_1d_texture:
iattrib_list[ni++] = WGL_TEXTURE_TARGET_ARB;
iattrib_list[ni++] = WGL_TEXTURE_1D_ARB;
break;
default:
iattrib_list[ni++] = WGL_TEXTURE_TARGET_ARB;
iattrib_list[ni++] = WGL_TEXTURE_2D_ARB;
}
}
// Terminate the list.

1
panda/src/wgldisplay/wglGraphicsBuffer.h
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@ -47,6 +47,7 @@ public:
virtual ~wglGraphicsBuffer();
virtual bool begin_frame();
virtual void select_cube_map(int cube_map_index);
virtual void make_current();
virtual void release_gsg();

2
panda/src/wgldisplay/wglGraphicsStateGuardian.cxx
View File

@ -87,7 +87,7 @@ framebuffer_bind_to_texture(GraphicsOutput *win, Texture *tex) {
TextureContext *tc = tex->prepare_now(get_prepared_objects(), this);
nassertr(tc != (TextureContext *)NULL, false);
bind_texture(tc);
if (get_properties().is_single_buffered()) {
_wglBindTexImageARB(buffer->_pbuffer, WGL_FRONT_LEFT_ARB);
} else {