GetDirectionalLightMatrix()

void Spices::Renderer::GetDirectionalLightMatrix ( FrameInfo & frameInfo, std::array< glm::mat4, MAX_DIRECTIONALLIGHT_NUM > & directionalLight )

protectedinherited

Definition at line 400 of file Renderer.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        for (uint32_t i = 0; i < MAX_DIRECTIONALLIGHT_NUM; i++)
        {
            directionalLight[i] = glm::mat4(1.0f);
        }
 
        TransformComponent camTranComp;
        float ratio;
 
        IterWorldCompWithBreak<CameraComponent>(
            frameInfo,
            [&](
            int                  entityId,
            TransformComponent&  tranComp,
            CameraComponent&     camComp
            ) {
                camTranComp = tranComp;
                ratio = camComp.GetCamera()->GetAspectRatio();
                return true;
        });
 
        int index = 0;
        IterWorldCompWithBreak<DirectionalLightComponent>(
            frameInfo,
            [&](
            int                          entityId    ,
            TransformComponent&          tranComp   ,
            DirectionalLightComponent&   dirlightComp
            ) {
                TransformComponent tempComp;
                tempComp.SetPosition(camTranComp.GetPosition());
                tempComp.SetRotation(camTranComp.GetRotation());
 
                const glm::mat4 view = tempComp.GetModelMatrix();
                const glm::mat4 projection = OtrhographicMatrix(-ratio * 30, ratio * 30, -1.0f * 30, 1.0f * 30, -100000.0f, 100000.0f);
 
                directionalLight[index] = projection * glm::inverse(view);
                index++;
                return false;
        });
    }

References MAX_DIRECTIONALLIGHT_NUM.