C++ (Cpp) ShadingResult::set_entity_aov Examples

Example #1

File: shadingengine.cpp Project: fewo/appleseed

void ShadingEngine::shade_environment(
    SamplingContext&        sampling_context,
    const ShadingContext&   shading_context,
    const ShadingPoint&     shading_point,
    ShadingResult&          shading_result) const
{
    // Retrieve the environment shader of the scene.
    const EnvironmentShader* environment_shader =
        shading_point.get_scene().get_environment()->get_environment_shader();

    if (environment_shader)
    {
        // There is an environment shader: execute it.
        InputEvaluator input_evaluator(shading_context.get_texture_cache());
        const ShadingRay& ray = shading_point.get_ray();
        const Vector3d direction = normalize(ray.m_dir);
        environment_shader->evaluate(
            input_evaluator,
            direction,
            shading_result);

        // Set environment shader AOV.
        shading_result.set_entity_aov(*environment_shader);
    }
    else
    {
        // No environment shader: shade as transparent black.
        shading_result.set_main_to_transparent_black_linear_rgba();
        shading_result.set_aovs_to_transparent_black_linear_rgba();
    }
}

Example #2

File: shadingengine.cpp Project: fewo/appleseed

void ShadingEngine::shade_hit_point(
    SamplingContext&        sampling_context,
    const PixelContext&     pixel_context,
    const ShadingContext&   shading_context,
    const ShadingPoint&     shading_point,
    ShadingResult&          shading_result) const
{
    // Retrieve the material of the intersected surface.
    const Material* material = shading_point.get_material();

    // Compute the alpha channel of the main output.
    if (material && material->get_alpha_map())
    {
        // There is an alpha map: evaluate it.
        material->get_alpha_map()->evaluate(
            shading_context.get_texture_cache(),
            shading_point.get_uv(0),
            shading_result.m_main.m_alpha);
    }
    else
    {
        // No alpha map: solid sample.
        shading_result.m_main.m_alpha = Alpha(1.0f);
    }

#ifdef WITH_OSL
    if (material && material->get_osl_surface() && material->get_osl_surface()->has_transparency())
    {
        Alpha a;
        shading_context.execute_osl_transparency(
            *material->get_osl_surface(),
            shading_point,
            a);

        shading_result.m_main.m_alpha *= a;
    }
#endif

    if (shading_result.m_main.m_alpha[0] > 0.0f || material->shade_alpha_cutouts())
    {
        // Use the diagnostic surface shader if there is one.
        const SurfaceShader* surface_shader = m_diagnostic_surface_shader.get();

        if (surface_shader == 0)
        {
            if (material == 0)
            {
                // The intersected surface has no material: return solid pink.
                shading_result.set_main_to_opaque_pink_linear_rgba();
                shading_result.set_aovs_to_transparent_black_linear_rgba();
                return;
            }

            // Use the surface shader of the intersected surface.
            surface_shader = material->get_surface_shader();

            if (surface_shader == 0)
            {
                // The intersected surface has no surface shader: return solid pink.
                shading_result.set_main_to_opaque_pink_linear_rgba();
                shading_result.set_aovs_to_transparent_black_linear_rgba();
                return;
            }
        }

        // Execute the surface shader.
        surface_shader->evaluate(
            sampling_context,
            pixel_context,
            shading_context,
            shading_point,
            shading_result);

        // Set AOVs.
        shading_result.set_entity_aov(shading_point.get_assembly());
        shading_result.set_entity_aov(shading_point.get_assembly_instance());
        shading_result.set_entity_aov(shading_point.get_object());
        shading_result.set_entity_aov(shading_point.get_object_instance());
        if (material)
            shading_result.set_entity_aov(*material);
        shading_result.set_entity_aov(*surface_shader);
    }
    else
    {
        // Alpha is zero: shade as transparent black.
        shading_result.set_main_to_transparent_black_linear_rgba();
        shading_result.set_aovs_to_transparent_black_linear_rgba();
    }
}