/**
* Simple recursive method to draw a node and its subnodes
*
* @param nodeInstance The node instance
*/
private void drawNode(Node nodeInstance) {
MatrixUtils.multiplyMM(this.lightMvpCache, 48, this.lightMvpCache, 32, nodeInstance.model, 0);
GLES20.glUniformMatrix4fv(this.u_lightMvpMatrixMat4Handle, 1, false, this.lightMvpCache, 48);
if (nodeInstance.geometryInstances != null) {
for (GeometryInstance geometryInstance : nodeInstance.geometryInstances) {
for (Element element : geometryInstance.geometry.elements) {
if (element.handle == GlBuffer.UNBIND_HANDLE) {
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, GlBuffer.UNBIND_HANDLE);
final GlBuffer<float[]> elementBuffer = BufferUtils.elementToGlBuffer(element);
elementBuffer.position(elementBuffer.chunks[0]);
GLES20.glVertexAttribPointer(
this.a_PositionVec4Handle,
elementBuffer.chunks[0].components,
elementBuffer.datatype,
false,
elementBuffer.stride,
elementBuffer.data);
GLES20.glDrawArrays(element.type, 0, element.count);
elementBuffer.free();
} else {
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, element.handle);
GLES20Utils.glVertexAttribPointer(
this.a_PositionVec4Handle,
element.inputs[0][GlAssets.Geometry.Element.SIZE],
GLES20.GL_FLOAT,
false,
element.stride,
element.inputs[0][GlAssets.Geometry.Element.OFFSET]);
GLES20.glDrawArrays(element.type, 0, element.count);
GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, GlBuffer.UNBIND_HANDLE);
}
}
}
}
if (nodeInstance.nodeInstances != null) {
for (Node childNode : nodeInstance.nodeInstances) {
this.drawNode(childNode);
}
}
}
/* (non-Javadoc)
* @see fr.kesk.gl.shader.GlShader#render(fr.kesk.gl.GlAssets.Node)
*/
@Override
public void render(Node nodeInstance) {
// android.util.Log.d(TAG,"render("+nodeInstance.id+")");
if (this.lightType == Light.DIRECTIONAL) {
this.lightModel[4] = this.lightModel[5] = this.lightModel[6] = 0f;
this.lightModel[7] = 1f;
MatrixUtils.multiplyMV(this.lightModel, 4, nodeInstance.model, 0, this.lightModel, 4);
this.lightModel[0] = this.lightModel[4] - this.lightModel[8];
this.lightModel[1] = this.lightModel[5] - this.lightModel[9];
this.lightModel[2] = this.lightModel[6] - this.lightModel[10];
this.lightModel[3] = 1f;
Matrix.setLookAtM(
this.lightMvpCache,
0,
this.lightModel[0],
this.lightModel[1],
this.lightModel[2],
this.lightModel[4],
this.lightModel[5],
this.lightModel[6],
0f,
1f,
0f);
MatrixUtils.multiplyMM(this.lightMvpCache, 32, this.lightMvpCache, 16, this.lightMvpCache, 0);
MatrixUtils.multiplyMM(
this.currentShadowMap.shadowMatrix,
0,
GlFastShadowMapShader.BIAS_MATRIX,
0,
this.lightMvpCache,
32);
} else if (this.lightType == Light.POINT) {
this.lightModel[4] = this.lightModel[5] = this.lightModel[6] = 0f;
this.lightModel[7] = 1f;
MatrixUtils.multiplyMV(this.lightModel, 4, nodeInstance.model, 0, this.lightModel, 4);
Matrix.setLookAtM(
this.lightMvpCache,
0,
this.lightModel[0],
this.lightModel[1],
this.lightModel[2],
this.lightModel[4],
this.lightModel[5],
this.lightModel[6],
0f,
1f,
0f);
MatrixUtils.multiplyMM(this.lightMvpCache, 32, this.lightMvpCache, 16, this.lightMvpCache, 0);
MatrixUtils.multiplyMM(
this.currentShadowMap.shadowMatrix,
0,
GlFastShadowMapShader.BIAS_MATRIX,
0,
this.lightMvpCache,
32);
}
// Render the scene in the FBO
this.fbo.bind();
this.program.start();
this.cullfaceMode = GlContext.glGetState(GLES20.GL_CULL_FACE_MODE);
this.viewPort = GlContext.glGetState(GLES20.GL_VIEWPORT);
GLES20.glCullFace(GLES20.GL_FRONT);
GLES20.glViewport(0, 0, this.quality, this.quality);
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
GLES20.glEnableVertexAttribArray(this.a_PositionVec4Handle);
this.drawNode(nodeInstance);
GLES20.glDisableVertexAttribArray(this.a_PositionVec4Handle);
this.fbo.unbind();
GLES20.glCullFace((int) this.cullfaceMode[0]);
GLES20.glViewport(
(int) this.viewPort[0],
(int) this.viewPort[1],
(int) this.viewPort[2],
(int) this.viewPort[3]);
}