Package fcagnin.jglsdk.glutil

Examples of fcagnin.jglsdk.glutil.MatrixStack.top()

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        {
            MatrixStack lightProjStack = new MatrixStack();
            lightProjStack.applyMatrix( Glm.inverse( lightView ) );
            lightProjStack.applyMatrix( Glm.inverse( cameraMatrix ) );

            lightProjMatBinder.setValue( lightProjStack.top() );

            Vec4 worldLightPos = lightView.getColumn( 3 );
            Vec3 lightPos = new Vec3( Mat4.mul( cameraMatrix, worldLightPos ) );

            camLightPosBinder.setValue( lightPos );
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        glClearDepth( 1.0f );
        glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

        MatrixStack modelMatrix = new MatrixStack();
        modelMatrix.setMatrix( viewPole.calcMatrix() );
        final Mat4 worldToCamMat = modelMatrix.top();

        LightBlock lightData = new LightBlock();
        lightData.ambientIntensity = new Vec4( 0.2f, 0.2f, 0.2f, 1.0f );
        float lightAttenuation = 1.0f / (halfLightDistance * halfLightDistance);
        lightData.lightAttenuation = lightAttenuation;
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        {
            glBindBufferRange( GL_UNIFORM_BUFFER, materialBlockIndex, materialUniformBuffer,
                    MaterialNames.TERRAIN.ordinal() * materialBlockOffset, MaterialBlock.SIZE );

            Mat3 normMatrix = new Mat3( modelMatrix.top() );
            normMatrix = Glm.transpose( Glm.inverse( normMatrix ) );

            glUseProgram( litMeshProg.theProgram );
            glUniformMatrix4( litMeshProg.modelToCameraMatrixUnif, false,
                    modelMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
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            Mat3 normMatrix = new Mat3( modelMatrix.top() );
            normMatrix = Glm.transpose( Glm.inverse( normMatrix ) );

            glUseProgram( litMeshProg.theProgram );
            glUniformMatrix4( litMeshProg.modelToCameraMatrixUnif, false,
                    modelMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
            glUniformMatrix3( litMeshProg.normalModelToCameraMatrixUnif, false,
                    normMatrix.fillAndFlipBuffer( mat3Buffer ) );

            planeMesh.render();
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            modelMatrix.translate( new Vec3( calcLightPosition() ) );
            modelMatrix.scale( 0.5f );

            glUseProgram( unlit.theProgram );
            glUniformMatrix4( unlit.modelToCameraMatrixUnif, false, modelMatrix.top().fillAndFlipBuffer( mat4Buffer ) );

            Vec4 lightColor = new Vec4( 1.0f );
            glUniform4( unlit.objectColorUnif, lightColor.fillAndFlipBuffer( vec4Buffer ) );
            cubeMesh.render( "flat" );
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        MatrixStack persMatrix = new MatrixStack();
        persMatrix.perspective( 60.0f, 1.0f, zNear, zFar );

        glUseProgram( smoothInterp.theProgram );
        glUniformMatrix4( smoothInterp.cameraToClipMatrixUnif, false,
                persMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
        glUseProgram( linearInterp.theProgram );
        glUniformMatrix4( linearInterp.cameraToClipMatrixUnif, false,
                persMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
        glUseProgram( 0 );
    }
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        glUseProgram( smoothInterp.theProgram );
        glUniformMatrix4( smoothInterp.cameraToClipMatrixUnif, false,
                persMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
        glUseProgram( linearInterp.theProgram );
        glUniformMatrix4( linearInterp.cameraToClipMatrixUnif, false,
                persMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
        glUseProgram( 0 );
    }

    private ProgramData loadProgram(String vertexShaderFileName, String fragmentShaderFileName) {
        ArrayList<Integer> shaderList = new ArrayList<>();
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        MatrixStack modelMatrix = new MatrixStack();
        modelMatrix.setMatrix( viewPole.calcMatrix() );

        final Vec4 worldLightPos = calcLightPosition();
        final Vec4 lightPosCameraSpace = Mat4.mul( modelMatrix.top(), worldLightPos );

        ProgramData whiteProg = null;
        ProgramData colorProg = null;

        switch ( lightModel ) {
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            // Render the ground plane.
            {
                modelMatrix.push();

                Mat3 normMatrix = new Mat3( modelMatrix.top() );
                normMatrix = Glm.transpose( Glm.inverse( normMatrix ) );

                glUseProgram( whiteProg.theProgram );
                glUniformMatrix4( whiteProg.modelToCameraMatrixUnif, false,
                        modelMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
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                Mat3 normMatrix = new Mat3( modelMatrix.top() );
                normMatrix = Glm.transpose( Glm.inverse( normMatrix ) );

                glUseProgram( whiteProg.theProgram );
                glUniformMatrix4( whiteProg.modelToCameraMatrixUnif, false,
                        modelMatrix.top().fillAndFlipBuffer( mat4Buffer ) );

                glUniformMatrix3( whiteProg.normalModelToCameraMatrixUnif, false,
                        normMatrix.fillAndFlipBuffer( mat3Buffer ) );
                planeMesh.render();
                glUseProgram( 0 );
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