diff options
Diffstat (limited to 'src/opengl.c')
| -rw-r--r-- | src/opengl.c | 64 |
1 files changed, 55 insertions, 9 deletions
diff --git a/src/opengl.c b/src/opengl.c index e24a595..d9851b2 100644 --- a/src/opengl.c +++ b/src/opengl.c @@ -30,6 +30,9 @@ void D3D_ZBufferedGouraudTexturedPolygon_Output(POLYHEADER *inputPolyPtr, RENDER int texoffset; void *TextureHandle; int i; + GLfloat ZNear, zvalue; + + ZNear = (GLfloat) (Global_VDB_Ptr->VDB_ClipZ * GlobalScale); texoffset = inputPolyPtr->PolyColour & ClrTxDefn; if (texoffset) { @@ -41,7 +44,34 @@ void D3D_ZBufferedGouraudTexturedPolygon_Output(POLYHEADER *inputPolyPtr, RENDER fprintf(stderr, "D3D_ZBufferedGouraudTexturedPolygon_Output(%p, %p)\n", inputPolyPtr, renderVerticesPtr); fprintf(stderr, "\tRenderPolygon.NumberOfVertices = %d\n", RenderPolygon.NumberOfVertices); fprintf(stderr, "\ttexoffset = %d (ptr = %p)\n", texoffset, texoffset ? (void *)ImageHeaderArray[texoffset].D3DHandle : CurrTextureHandle); - + +switch(RenderPolygon.TranslucencyMode) +{ + case TRANSLUCENCY_OFF: + glBlendFunc(GL_ONE, GL_ZERO); + break; + case TRANSLUCENCY_NORMAL: + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + break; + case TRANSLUCENCY_COLOUR: + glBlendFunc(GL_ZERO, GL_SRC_COLOR); + break; + case TRANSLUCENCY_INVCOLOUR: + glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_COLOR); + break; + case TRANSLUCENCY_GLOWING: + glBlendFunc(GL_SRC_ALPHA, GL_ONE); + break; + case TRANSLUCENCY_DARKENINGCOLOUR: + glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ZERO); + break; + case TRANSLUCENCY_JUSTSETZ: + glBlendFunc(GL_ZERO, GL_ONE); + break; + default: + fprintf(stderr, "RenderPolygon.TranslucencyMode: invalid %d\n", RenderPolygon.TranslucencyMode); +} + glBegin(GL_POLYGON); for (i = 0; i < RenderPolygon.NumberOfVertices; i++) { GLfloat x, y, z; @@ -49,14 +79,30 @@ void D3D_ZBufferedGouraudTexturedPolygon_Output(POLYHEADER *inputPolyPtr, RENDER RENDERVERTEX *vertices = &renderVerticesPtr[i]; /* this is just random garbage */ -// x1 = (vertices->X*(Global_VDB_Ptr->VDB_ProjX+1))/vertices->Z+Global_VDB_Ptr->VDB_CentreX; -// y1 = (vertices->Y*(Global_VDB_Ptr->VDB_ProjY+1))/vertices->Z+Global_VDB_Ptr->VDB_CentreY; - x = vertices->X; - y = vertices->Y; - - x = x/32768.0; - y = y/32768.0; - z = -1+-1.0f/vertices->Z; + x1 = (vertices->X*(Global_VDB_Ptr->VDB_ProjX+1))/vertices->Z+Global_VDB_Ptr->VDB_CentreX; + y1 = (vertices->Y*(Global_VDB_Ptr->VDB_ProjY+1))/vertices->Z+Global_VDB_Ptr->VDB_CentreY; +// x = vertices->X; +// y = vertices->Y; + x = x1; + y = y1; + +// x = x/32768.0; +// y = y/32768.0; +// x = (x - 32768.0)/32768.0; +// y = (y - 32768.0)/32768.0; + x = (x - 320.0)/320.0; + y = (y - 240.0)/240.0; + +// z = vertices->Z*16; +// z = -z/65536; + + zvalue = vertices->Z+HeadUpDisplayZOffset; + zvalue = 1.0f - ZNear/zvalue; + z = -zvalue; + +// x *= 16.0; +// y *= 16.0; +// z *= 16.0; glColor4ub(vertices->R, vertices->G, vertices->B, vertices->A); glVertex3f(x, y, z); |