A simple Wavefront OBJ viewer.

• Transformation on the entire scene accurately around the scene's center.
• More accurate bounds calculation (improving shadow map sampling quality).
• User selection on GPU.
• Better take advantage of dedicated video memory by using private buffers. Especially important for desktop-class graphics card or external GPU).
• Background loading.
• Motion blur.
• Blending with real-scene background.

• Ambient occlusion.

• Transform of the entire scene (including the light sources).
• Better PCSS soft shadow

• Ground shadow

• Skybox.

• BRDF mode. Fix artifacts in specular lighting.
• Save to high resolution PNG (up to 3900 px).
• Rotate individual parts (mandatory for the varying-geometry wing plane model!).

• Adjustable shadowing PCF and bias to alliviate artifacts.
• Preliminary shadowing for two of the four light sources.

• Load/save scene parameters (postion, light source direction, etc.).
• Normal texture.
• Light source configuration.
• Multiple light sources.

• Adjustable lighting direction.
• Better handling to material opacity.

• Order-independent transparency.
• Bump (displacement) texture.
• Normal texture.
• Direction of lgiht source.
• Intensity of light source.
• Mutilple light sources.
• Selectable list of object.
• Surface smooth.
• Shadow
  • Shadow to model
  • Shadow to ground.
  • PCSS.
    • Basic PCSS.
    • Adjustable occluder search range.
    • More adjustable bias.
  • Transparency (strength) of shadow overlay. (Achieved by ambient)
  • Linear shadow map (more plausible PCSS, VSM).
  • Adaptive shadow map resolution/region.
• Per light-source, per-surface shadow properties (bias, soft edge).
• Cull mode.
• Surrounding.
  • Cubmap skybox.
  • Water (for ship model).
• Motion blur (especially for rotating parts like rotor).
• Detailed properties panel for indiviudal model parts.
  • Smooth options (everywhere, texture discontinuiation only, etc).
  • Material opacity adjustment.
  • Material adjustment (specular, colors, etc).
  • List of board objects.
  • Self illumination.
• Reflection.
• BRDF mode.
• Ambient occlusion.
• Model visualization
  • PCSS steps visualization.
  • Triangle mesh
  • Normal/tangent visualization

Screenshot of the first version (left). Add support to simple transparency (right).