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Commit 3197cded authored by Chris Craik's avatar Chris Craik
Browse files

Map shadow light position globally 

Change-Id: Ic3201cecdf5d2a1dd628e7e40aee912ef516d3b2
parent c46809e9

libs/hwui/OpenGLRenderer.cpp

+2 −2
Original line number Original line Diff line number Diff line
@@ -3201,8 +3201,8 @@ status_t OpenGLRenderer::drawShadow(const mat4& casterTransform, float casterAlp 




    VertexBuffer spotShadowVertexBuffer;

    VertexBuffer spotShadowVertexBuffer;

    ShadowTessellator::tessellateSpotShadow(width, height,

    ShadowTessellator::tessellateSpotShadow(width, height,

            getWidth(), getHeight(), casterTransform,

            *currentTransform(), getWidth(), getHeight(),

            spotShadowVertexBuffer);

            casterTransform, spotShadowVertexBuffer);

    drawVertexBuffer(spotShadowVertexBuffer, &paint);

    drawVertexBuffer(spotShadowVertexBuffer, &paint);





    return DrawGlInfo::kStatusDrew;

    return DrawGlInfo::kStatusDrew;

libs/hwui/ShadowTessellator.cpp

+8 −1
Original line number Original line Diff line number Diff line
@@ -90,7 +90,7 @@ void ShadowTessellator::tessellateAmbientShadow(float width, float height, 
}

}





void ShadowTessellator::tessellateSpotShadow(float width, float height,

void ShadowTessellator::tessellateSpotShadow(float width, float height,

        int screenWidth, int screenHeight,

        const mat4& receiverTransform, int screenWidth, int screenHeight,

        const mat4& casterTransform, VertexBuffer& shadowVertexBuffer) {

        const mat4& casterTransform, VertexBuffer& shadowVertexBuffer) {

    const int vertexCount = 4;

    const int vertexCount = 4;

    Vector3 polygon[vertexCount];

    Vector3 polygon[vertexCount];
@@ -106,6 +106,13 @@ void ShadowTessellator::tessellateSpotShadow(float width, float height, 
#if DEBUG_SHADOW

#if DEBUG_SHADOW

    ALOGD("light center %f %f %f", lightCenter.x, lightCenter.y, lightCenter.z);

    ALOGD("light center %f %f %f", lightCenter.x, lightCenter.y, lightCenter.z);

#endif

#endif



    // light position (because it's in local space) needs to compensate for receiver transform

    // TODO: should apply to light orientation, not just position

    Matrix4 reverseReceiverTransform;

    reverseReceiverTransform.loadInverse(receiverTransform);

    reverseReceiverTransform.mapPoint3d(lightCenter);



    const float lightSize = maximal / 8;

    const float lightSize = maximal / 8;

    const int lightVertexCount = 16;

    const int lightVertexCount = 16;

libs/hwui/ShadowTessellator.h

+1 −1
Original line number Original line Diff line number Diff line
@@ -30,7 +30,7 @@ public: 
            const mat4& casterTransform, VertexBuffer& shadowVertexBuffer);

            const mat4& casterTransform, VertexBuffer& shadowVertexBuffer);





    static void tessellateSpotShadow(float width, float height,

    static void tessellateSpotShadow(float width, float height,

            int screenWidth, int screenHeight,

            const mat4& receiverTransform, int screenWidth, int screenHeight,

            const mat4& casterTransform, VertexBuffer& shadowVertexBuffer);

            const mat4& casterTransform, VertexBuffer& shadowVertexBuffer);





private:

private: