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09-hdr: Added dynamic randomized view id assignment.

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This commit is contained in:
Branimir Karadžić
2016-11-20 12:47:14 -08:00
parent cef953d6e9
commit f08a016aab
1 changed files with 89 additions and 73 deletions
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162
examples/09-hdr/hdr.cpp
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@@ -155,29 +155,9 @@ class ExampleHDR : public entry::AppI
// Enable m_debug text.
bgfx::setDebug(m_debug);
// Set view 0 clear state.
bgfx::setViewClear(9
, BGFX_CLEAR_COLOR|BGFX_CLEAR_DEPTH
, 0x303030ff
, 1.0f
, 0
);
// Create vertex stream declaration.
PosColorTexCoord0Vertex::init();
// Set view m_debug names.
bgfx::setViewName(9, "Skybox");
bgfx::setViewName(1, "Mesh");
bgfx::setViewName(2, "Luminance");
bgfx::setViewName(3, "Downscale luminance 0");
bgfx::setViewName(4, "Downscale luminance 1");
bgfx::setViewName(5, "Downscale luminance 2");
bgfx::setViewName(6, "Downscale luminance 3");
bgfx::setViewName(7, "Brightness");
bgfx::setViewName(8, "Blur vertical");
bgfx::setViewName(0, "Blur horizontal + tonemap");
m_uffizi = loadTexture("textures/uffizi.dds"
, 0
| BGFX_TEXTURE_U_CLAMP
@@ -360,50 +340,88 @@ class ExampleHDR : public entry::AppI
bgfx::dbgTextPrintf(0, 2, 0x6f, "Description: Using multiple views with frame buffers, and view order remapping.");
bgfx::dbgTextPrintf(0, 3, 0x0f, "Frame: % 7.3f[ms]", double(frameTime)*toMs);
uint8_t shuffle[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
for (uint8_t ii = 0; ii < BX_COUNTOF(shuffle)-1; ++ii)
{
bx::xchg(shuffle[ii], shuffle[rand()%BX_COUNTOF(shuffle)]);
}
uint8_t hdrSkybox = shuffle[0];
uint8_t hdrMesh = shuffle[1];
uint8_t hdrLuminance = shuffle[2];
uint8_t hdrLumScale0 = shuffle[3];
uint8_t hdrLumScale1 = shuffle[4];
uint8_t hdrLumScale2 = shuffle[5];
uint8_t hdrLumScale3 = shuffle[6];
uint8_t hdrBrightness = shuffle[7];
uint8_t hdrVBlur = shuffle[8];
uint8_t hdrHBlurTonemap = shuffle[9];
// Set views.
bgfx::setViewRect(9, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewRect(1, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewRect(2, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewRect(3, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewRect(4, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewRect(5, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewFrameBuffer(9, m_fbh);
bgfx::setViewFrameBuffer(1, m_fbh);
bgfx::setViewClear(1, BGFX_CLEAR_DISCARD_DEPTH|BGFX_CLEAR_DISCARD_STENCIL);
bgfx::setViewName(hdrSkybox, "Skybox");
bgfx::setViewClear(hdrSkybox, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH, 0x303030ff, 1.0f, 0);
bgfx::setViewRect(hdrSkybox, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewFrameBuffer(hdrSkybox, m_fbh);
bgfx::setViewRect(2, 0, 0, 128, 128);
bgfx::setViewFrameBuffer(2, m_lum[0]);
bgfx::setViewName(hdrMesh, "Mesh");
bgfx::setViewClear(hdrMesh, BGFX_CLEAR_DISCARD_DEPTH | BGFX_CLEAR_DISCARD_STENCIL);
bgfx::setViewRect(hdrMesh, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewFrameBuffer(hdrMesh, m_fbh);
bgfx::setViewRect(3, 0, 0, 64, 64);
bgfx::setViewFrameBuffer(3, m_lum[1]);
bgfx::setViewName(hdrLuminance, "Luminance");
bgfx::setViewRect(hdrLuminance, 0, 0, 128, 128);
bgfx::setViewFrameBuffer(hdrLuminance, m_lum[0]);
bgfx::setViewRect(4, 0, 0, 16, 16);
bgfx::setViewFrameBuffer(4, m_lum[2]);
bgfx::setViewName(hdrLumScale0, "Downscale luminance 0");
bgfx::setViewRect(hdrLumScale0, 0, 0, 64, 64);
bgfx::setViewFrameBuffer(hdrLumScale0, m_lum[1]);
bgfx::setViewRect(5, 0, 0, 4, 4);
bgfx::setViewFrameBuffer(5, m_lum[3]);
bgfx::setViewName(hdrLumScale1, "Downscale luminance 1");
bgfx::setViewRect(hdrLumScale1, 0, 0, 16, 16);
bgfx::setViewFrameBuffer(hdrLumScale1, m_lum[2]);
bgfx::setViewRect(6, 0, 0, 1, 1);
bgfx::setViewFrameBuffer(6, m_lum[4]);
bgfx::setViewName(hdrLumScale2, "Downscale luminance 2");
bgfx::setViewRect(hdrLumScale2, 0, 0, 4, 4);
bgfx::setViewFrameBuffer(hdrLumScale2, m_lum[3]);
bgfx::setViewRect(7, 0, 0, bgfx::BackbufferRatio::Half);
bgfx::setViewFrameBuffer(7, m_bright);
bgfx::setViewName(hdrLumScale3, "Downscale luminance 3");
bgfx::setViewRect(hdrLumScale3, 0, 0, 1, 1);
bgfx::setViewFrameBuffer(hdrLumScale3, m_lum[4]);
bgfx::setViewRect(8, 0, 0, bgfx::BackbufferRatio::Eighth);
bgfx::setViewFrameBuffer(8, m_blur);
bgfx::setViewName(hdrBrightness, "Brightness");
bgfx::setViewRect(hdrBrightness, 0, 0, bgfx::BackbufferRatio::Half);
bgfx::setViewFrameBuffer(hdrBrightness, m_bright);
bgfx::setViewRect(0, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewName(hdrVBlur, "Blur vertical");
bgfx::setViewRect(hdrVBlur, 0, 0, bgfx::BackbufferRatio::Eighth);
bgfx::setViewFrameBuffer(hdrVBlur, m_blur);
bgfx::setViewName(hdrHBlurTonemap, "Blur horizontal + tonemap");
bgfx::setViewRect(hdrHBlurTonemap, 0, 0, bgfx::BackbufferRatio::Equal);
bgfx::setViewFrameBuffer(hdrHBlurTonemap, BGFX_INVALID_HANDLE);
float view[16];
float proj[16];
bx::mtxIdentity(view);
bx::mtxOrtho(proj, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 100.0f);
// Set view and projection matrix for view 0.
for (uint32_t ii = 0; ii < 10; ++ii)
uint8_t remap[] =
{
bgfx::setViewTransform(ii, view, proj);
hdrSkybox,
hdrMesh,
hdrLuminance,
hdrLumScale0,
hdrLumScale1,
hdrLumScale2,
hdrLumScale3,
hdrBrightness,
hdrVBlur,
hdrHBlurTonemap
};
bgfx::setViewRemap(0, BX_COUNTOF(remap), remap);
// Set view and projection matrix for view 0.
for (uint32_t ii = 0; ii < BX_COUNTOF(remap); ++ii)
{
bgfx::setViewTransform(ii, NULL, proj);
}
float at[3] = { 0.0f, 1.0f, 0.0f };
@@ -418,76 +436,77 @@ class ExampleHDR : public entry::AppI
float temp[4];
bx::vec3MulMtx(temp, eye, mtx);
float view[16];
bx::mtxLookAt(view, temp, at);
bx::mtxProj(proj, 60.0f, float(m_width)/float(m_height), 0.1f, 100.0f);
// Set view and projection matrix for view 1.
bgfx::setViewTransform(1, view, proj);
// Set view and projection matrix for view hdrMesh.
bgfx::setViewTransform(hdrMesh, view, proj);
bgfx::setUniform(u_mtx, mtx);
float tonemap[4] = { m_middleGray, square(m_white), m_threshold, m_time };
// Render skybox into view 0.
// Render skybox into view hdrSkybox.
bgfx::setTexture(0, s_texCube, m_uffizi);
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
bgfx::setUniform(u_mtx, mtx);
screenSpaceQuad( (float)m_width, (float)m_height, true);
bgfx::submit(9, m_skyProgram);
bgfx::submit(hdrSkybox, m_skyProgram);
// Render m_mesh into view 1
// Render m_mesh into view hdrMesh.
bgfx::setTexture(0, s_texCube, m_uffizi);
meshSubmit(m_mesh, 1, m_meshProgram, NULL);
bgfx::setUniform(u_tonemap, tonemap);
meshSubmit(m_mesh, hdrMesh, m_meshProgram, NULL);
// Calculate luminance.
setOffsets2x2Lum(u_offset, 128, 128);
bgfx::setTexture(0, s_texColor, m_fbtextures[0]);
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
screenSpaceQuad(128.0f, 128.0f, m_caps->originBottomLeft);
bgfx::submit(2, m_lumProgram);
bgfx::submit(hdrLuminance, m_lumProgram);
// Downscale luminance 0.
setOffsets4x4Lum(u_offset, 128, 128);
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[0]) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
screenSpaceQuad(64.0f, 64.0f, m_caps->originBottomLeft);
bgfx::submit(3, m_lumAvgProgram);
bgfx::submit(hdrLumScale0, m_lumAvgProgram);
// Downscale luminance 1.
setOffsets4x4Lum(u_offset, 64, 64);
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[1]) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
screenSpaceQuad(16.0f, 16.0f, m_caps->originBottomLeft);
bgfx::submit(4, m_lumAvgProgram);
bgfx::submit(hdrLumScale1, m_lumAvgProgram);
// Downscale luminance 2.
setOffsets4x4Lum(u_offset, 16, 16);
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[2]) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
screenSpaceQuad(4.0f, 4.0f, m_caps->originBottomLeft);
bgfx::submit(5, m_lumAvgProgram);
bgfx::submit(hdrLumScale2, m_lumAvgProgram);
// Downscale luminance 3.
setOffsets4x4Lum(u_offset, 4, 4);
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_lum[3]) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
screenSpaceQuad(1.0f, 1.0f, m_caps->originBottomLeft);
bgfx::submit(6, m_lumAvgProgram);
float tonemap[4] = { m_middleGray, square(m_white), m_threshold, m_time };
bgfx::setUniform(u_tonemap, tonemap);
bgfx::submit(hdrLumScale3, m_lumAvgProgram);
// m_bright pass m_threshold is tonemap[3].
setOffsets4x4Lum(u_offset, m_width/2, m_height/2);
bgfx::setTexture(0, s_texColor, m_fbtextures[0]);
bgfx::setTexture(1, s_texLum, bgfx::getTexture(m_lum[4]) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
bgfx::setUniform(u_tonemap, tonemap);
screenSpaceQuad( (float)m_width/2.0f, (float)m_height/2.0f, m_caps->originBottomLeft);
bgfx::submit(7, m_brightProgram);
bgfx::submit(hdrBrightness, m_brightProgram);
// m_blur m_bright pass vertically.
bgfx::setTexture(0, s_texColor, bgfx::getTexture(m_bright) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
bgfx::setUniform(u_tonemap, tonemap);
screenSpaceQuad( (float)m_width/8.0f, (float)m_height/8.0f, m_caps->originBottomLeft);
bgfx::submit(8, m_blurProgram);
bgfx::submit(hdrVBlur, m_blurProgram);
// m_blur m_bright pass horizontally, do tonemaping and combine.
bgfx::setTexture(0, s_texColor, m_fbtextures[0]);
@@ -495,17 +514,14 @@ class ExampleHDR : public entry::AppI
bgfx::setTexture(2, s_texBlur, bgfx::getTexture(m_blur) );
bgfx::setState(BGFX_STATE_RGB_WRITE|BGFX_STATE_ALPHA_WRITE);
screenSpaceQuad( (float)m_width, (float)m_height, m_caps->originBottomLeft);
bgfx::submit(0, m_tonemapProgram);
bgfx::submit(hdrHBlurTonemap, m_tonemapProgram);
if (bgfx::isValid(m_rb) )
{
bgfx::blit(0, m_rb, 0, 0, bgfx::getTexture(m_lum[4]) );
bgfx::blit(hdrHBlurTonemap, m_rb, 0, 0, bgfx::getTexture(m_lum[4]) );
bgfx::readTexture(m_rb, &m_lumBgra8);
}
uint8_t remap[] = { 9, 1, 2, 3, 4, 5, 6, 7, 8, 0 };
bgfx::setViewRemap(0, 10, remap);
// Advance to next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
bgfx::frame();