More samples to work with OpenGLES2

[gongminmin]

Status

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Not crash but result is wrong
MotionBlurDOF. (No R32F texture for SAT, won't fix)

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GOOD:
CausticsMap?, DeferredRendering?, DepthPeeling?, DetailedSurface?, DistanceMapping?, Fractal, GlobalIllumination?, GPUParticleSystem, JudaTexViewer?, ModelViewer?, Ocean, ParticleEditor?, PostProcessing?, ProcedualTex?, Refract, ShadowCubeMap?, SubSurface?, Text, VertexDispalcement?, VideoTexture?

[gongminmin]

Refract sample works.

In Ocean sample, water is right, but skybox is black because of CopyTexture? fails.

[gongminmin]

ShadowCubeMap? sample works.

[gongminmin]

Ocean sample works.

[gongminmin]

Bump mapping, Parallax mapping works in DetailedSurface?.

[gongminmin]

DistanceMapping? sample works in bump mapping.

[gongminmin]

POM in DetailedSurface? works.

[gongminmin]

Add deferred rendering without depth texture. Then DeferredRendering? and GlobalIllumination? works (in changeset dd6fd4944e838d546216f80cd40349e3faa77497).

[gongminmin]

ModelViewer? works. (in changeset 26eba713daa5c998dc806003e435efb6e8ce4100)

[gongminmin]

PostProcessing? works when it's convert to deferred rendering framework. (in changeset 40811d8c7c43b2121f5b47ee45fbc28c5180ffbf)

[gongminmin]

CausticsMap? works in changeset e624e80675396c58255d49658ef44a1b47f205be.

[gongminmin]

GPUParticleSystem works in changeset e363d0ca1a57ca1314c000f146a28b441381cffe.

[gongminmin]

All samples work with NVIDIA's OpenGLES2 emulator.