glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear Screen And Depth Buffer
glLoadIdentity();
glTranslatef(x, y, z);
glRotatef(rx, 1.0f, 0.0f, 0.0f);
glRotatef(ry, 0.0f, 1.0f, 0.0f);
glRotatef(rz, 0.0f, 0.0f, 1.0f);
glDisable(GL_TEXTURE_2D);
DrawSelector();
if (mode == FILLED) //Textured mode... why the transparency??!!
{
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, texture_id);
}
else //Wireframe mode
{
glColor4f(0.0f, 1.0f, 0.0f, 1.0f);
}
RenderHeightmap(height_map); //Draw the heightmap with triangle strips
Fixing transparancy issues.
Author
Somehow, my terrain is being rendered with alpha blending or something on... it's like the terrain is being rendered with full transparency. Here is all the rendering code:
Author
void RenderHeightmap(const HeightMap * height_map){ for (float y = 0.0f; y < (float)height_map->Height() - 1; ++y) { glBegin(GL_TRIANGLE_STRIP); for ( float x = 0.0f; x < (float)height_map->Width(); ++x) { glTexCoord2f(x/height_map->Width(), y/height_map->Height()); glVertex3f(x, y, height_map->GetTileInfo((int)x, (int)y).height); glTexCoord2f(x/height_map->Width(), (y+1)/height_map->Height()); glVertex3f(x, y + 1.0f, height_map->GetTileInfo((int)x, (int)(y + 1.0f)).height); } glEnd(); }}void DrawSelector(){ float select_height = height_map->GetTileInfo(select_x, select_y).height; float right_bound = (float)height_map->Width() - 1.0f; float bottom_bound = (float)height_map->Height() - 1.0f; glColor4f(1.0f, 1.0f, 1.0f, 1.0f); glBegin(GL_LINES); glVertex3f(0.0f, 0.0f, height_map->GetTileInfo(0, 0).height); glVertex3f((float)select_x, (float)select_y, select_height); glVertex3f(right_bound, 0.0f, height_map->GetTileInfo(height_map->Width() - 1, 0).height); glVertex3f((float)select_x, (float)select_y, select_height); glVertex3f(right_bound, bottom_bound, height_map->GetTileInfo(height_map->Width() - 1, height_map->Height() - 1).height); glVertex3f((float)select_x, (float)select_y, select_height); glVertex3f(0.0f, bottom_bound, height_map->GetTileInfo(0, height_map->Height() - 1).height); glVertex3f((float)select_x, (float)select_y, select_height); glEnd();}Thanks, and sorry. Um, I already posted about this, but in the RenderHeightmap function, how should I be rendering the texture? I tried by the way another poster showed me, as you can see above, but unfortunately that takes the texture and spreads it over the whole screen, and I'm looking for it to be used once per inner loop iteration. Any advice = rate++, for what it's worth from my not-quite-there rating. Thank you much.
Quote:Original post by silverphyre673Don't divide by the width and height. I think that's what you're asking.
...but unfortunately that takes the texture and spreads it over the whole screen, and I'm looking for it to be used once per inner loop iteration...
As for the transparency, are you sure that blending is disabled? As in, you're not enabling it anywhere else in your program and forgetting to disable it? Or maybe your not enabling depth-testing and some polygons that shouldn't be visible are? Maybe a screenshot would help.
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
