Package fcagnin.jglsdk.glutil

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

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            MatrixStack modelMatrix = new MatrixStack();

            // Render the ground plane.
            {
                modelMatrix.push();
                modelMatrix.scale( 100.0f, 1.0f, 100.0f );

                glUseProgram( uniformColor.theProgram );
                glUniformMatrix4( uniformColor.modelToWorldMatrixUnif, false,
                        modelMatrix.top().fillAndFlipBuffer( mat4Buffer ) );
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            // Draw the trees.
            drawForest( modelMatrix );

            // Draw the building.
            {
                modelMatrix.push();
                modelMatrix.translate( 20.0f, 0.0f, -10.0f );

                drawParthenon( modelMatrix );

                modelMatrix.pop();
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        glUniform4f( vertColorProgram.lightIntensityUnif, 0.8f, 0.8f, 0.8f, 1.0f );
        glUniform4f( vertColorProgram.ambientIntensityUnif, 0.2f, 0.2f, 0.2f, 1.0f );
        glUseProgram( 0 );

        {
            modelMatrix.push();

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

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

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

            if ( drawLookatPoint ) {
                glDisable( GL_DEPTH_TEST );

                modelMatrix.push();
                Vec3 cameraAimVec = Vec3.sub( camTarget, camPos );
                modelMatrix.translate( 0.0f, 0.0f, -Glm.length( cameraAimVec ) );
                modelMatrix.scale( 1.0f, 1.0f, 1.0f );

                Mat4 identity = new Mat4( 1.0f );
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                modelMatrix.pop();
            }

            // Render the Cylinder
            {
                modelMatrix.push();

                modelMatrix.applyMatrix( objtPole.calcMatrix() );

                if ( scaleCyl ) {
                    modelMatrix.scale( 1.0f, 1.0f, 0.2f );
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                modelMatrix.pop();
            }

            // Render the light
            if ( drawLight ) {
                modelMatrix.push();

                modelMatrix.translate( worldLightPos.x, worldLightPos.y, worldLightPos.z );
                modelMatrix.scale( 0.1f, 0.1f, 0.1f );

                glUseProgram( unlit.theProgram );
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            glBindBufferBase( GL_UNIFORM_BUFFER, materialBlockIndex, 0 );
        }

        if ( drawLights ) {
            modelMatrix.push();

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

            glUseProgram( unlit.theProgram );
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            modelMatrix.pop();
        }

        if ( drawCameraPos ) {
            modelMatrix.push();

            modelMatrix.setIdentity();
            modelMatrix.translate( new Vec3( 0.0f, 0.0f, -viewPole.getView().radius ) );

            glDisable( GL_DEPTH_TEST );
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        glBindBuffer( GL_UNIFORM_BUFFER, 0 );

        {
            glBindBufferRange( GL_UNIFORM_BUFFER, materialBlockIndex, materialUniformBuffer, 0, MaterialBlock.SIZE );

            modelMatrix.push();

            modelMatrix.applyMatrix( objtPole.calcMatrix() );
            modelMatrix.scale( 2.0f );

            Mat3 normMatrix = new Mat3( modelMatrix.top() );
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