C++ (Cpp) GPU_get_material_alpha_blend示例

示例#1

文件： RAS_OpenGLRasterizer.cpp 项目： DrangPo/blender

void RAS_OpenGLRasterizer::DrawDerivedMesh(class RAS_MeshSlot &ms)
{
	// mesh data is in derived mesh
	current_bucket = ms.m_bucket;
	current_polymat = current_bucket->GetPolyMaterial();
	current_ms = &ms;
	current_mesh = ms.m_mesh;
	current_wireframe = m_drawingmode <= RAS_IRasterizer::KX_WIREFRAME;
	// MCol *mcol = (MCol*)ms.m_pDerivedMesh->getFaceDataArray(ms.m_pDerivedMesh, CD_MCOL); /* UNUSED */

	// handle two-side
	if (current_polymat->GetDrawingMode() & RAS_IRasterizer::KX_BACKCULL)
		this->SetCullFace(true);
	else
		this->SetCullFace(false);

	if (current_polymat->GetFlag() & RAS_BLENDERGLSL) {
		// GetMaterialIndex return the original mface material index,
		// increment by 1 to match what derived mesh is doing
		current_blmat_nr = current_polymat->GetMaterialIndex()+1;
		// For GLSL we need to retrieve the GPU material attribute
		Material* blmat = current_polymat->GetBlenderMaterial();
		Scene* blscene = current_polymat->GetBlenderScene();
		if (!current_wireframe && blscene && blmat)
			GPU_material_vertex_attributes(GPU_material_from_blender(blscene, blmat, false), &current_gpu_attribs);
		else
			memset(&current_gpu_attribs, 0, sizeof(current_gpu_attribs));
		// DM draw can mess up blending mode, restore at the end
		int current_blend_mode = GPU_get_material_alpha_blend();
		ms.m_pDerivedMesh->drawFacesGLSL(ms.m_pDerivedMesh, CheckMaterialDM);
		GPU_set_material_alpha_blend(current_blend_mode);
	} else {
		//ms.m_pDerivedMesh->drawMappedFacesTex(ms.m_pDerivedMesh, CheckTexfaceDM, mcol);
		current_blmat_nr = current_polymat->GetMaterialIndex();
		current_image = current_polymat->GetBlenderImage();
		ms.m_pDerivedMesh->drawFacesTex(ms.m_pDerivedMesh, CheckTexDM, NULL, NULL, DM_DRAW_USE_ACTIVE_UV);
	}
}

示例#2

文件： RAS_StorageIM.cpp 项目： Andrewson3D/blender-for-vray

void RAS_StorageIM::IndexPrimitivesInternal(RAS_MeshSlot& ms, bool multi)
{ 
	bool obcolor = ms.m_bObjectColor;
	bool wireframe = m_drawingmode <= RAS_IRasterizer::KX_WIREFRAME;
	MT_Vector4& rgba = ms.m_RGBAcolor;
	RAS_MeshSlot::iterator it;

	if (ms.m_pDerivedMesh) {
		// mesh data is in derived mesh, 
		current_bucket = ms.m_bucket;
		current_polymat = current_bucket->GetPolyMaterial();
		current_ms = &ms;
		current_mesh = ms.m_mesh;
		current_wireframe = wireframe;
		// MCol *mcol = (MCol*)ms.m_pDerivedMesh->getFaceDataArray(ms.m_pDerivedMesh, CD_MCOL); /* UNUSED */

		// handle two-side
		if (current_polymat->GetDrawingMode() & RAS_IRasterizer::KX_BACKCULL)
			this->SetCullFace(true);
		else
			this->SetCullFace(false);

		if (current_polymat->GetFlag() & RAS_BLENDERGLSL) {
			// GetMaterialIndex return the original mface material index, 
			// increment by 1 to match what derived mesh is doing
			current_blmat_nr = current_polymat->GetMaterialIndex()+1;
			// For GLSL we need to retrieve the GPU material attribute
			Material* blmat = current_polymat->GetBlenderMaterial();
			Scene* blscene = current_polymat->GetBlenderScene();
			if (!wireframe && blscene && blmat)
				GPU_material_vertex_attributes(GPU_material_from_blender(blscene, blmat), &current_gpu_attribs);
			else
				memset(&current_gpu_attribs, 0, sizeof(current_gpu_attribs));
			// DM draw can mess up blending mode, restore at the end
			int current_blend_mode = GPU_get_material_alpha_blend();
			ms.m_pDerivedMesh->drawFacesGLSL(ms.m_pDerivedMesh, CheckMaterialDM);
			GPU_set_material_alpha_blend(current_blend_mode);
		} else {
			//ms.m_pDerivedMesh->drawMappedFacesTex(ms.m_pDerivedMesh, CheckTexfaceDM, mcol);
			current_blmat_nr = current_polymat->GetMaterialIndex();
			current_image = current_polymat->GetBlenderImage();
			ms.m_pDerivedMesh->drawFacesTex(ms.m_pDerivedMesh, CheckTexDM, NULL, NULL, DM_DRAW_USE_ACTIVE_UV);
		}
		return;
	}
	// iterate over display arrays, each containing an index + vertex array
	for (ms.begin(it); !ms.end(it); ms.next(it)) {
		RAS_TexVert *vertex;
		size_t i, j, numvert;
		
		numvert = it.array->m_type;

		if (it.array->m_type == RAS_DisplayArray::LINE) {
			// line drawing
			glBegin(GL_LINES);

			for (i = 0; i < it.totindex; i += 2)
			{
				vertex = &it.vertex[it.index[i]];
				glVertex3fv(vertex->getXYZ());

				vertex = &it.vertex[it.index[i+1]];
				glVertex3fv(vertex->getXYZ());
			}

			glEnd();
		}
		else {
			// triangle and quad drawing
			if (it.array->m_type == RAS_DisplayArray::TRIANGLE)
				glBegin(GL_TRIANGLES);
			else
				glBegin(GL_QUADS);

			for (i = 0; i < it.totindex; i += numvert)
			{
				if (obcolor)
					glColor4d(rgba[0], rgba[1], rgba[2], rgba[3]);

				for (j = 0; j < numvert; j++) {
					vertex = &it.vertex[it.index[i+j]];

					if (!wireframe) {
						if (!obcolor)
							glColor4ubv((const GLubyte *)(vertex->getRGBA()));

						glNormal3fv(vertex->getNormal());

						if (multi)
							TexCoord(*vertex);
						else
							glTexCoord2fv(vertex->getUV(0));
					}

					glVertex3fv(vertex->getXYZ());
				}
			}

			glEnd();
		}
	}
}