本文整理匯總了C++中Technique::index_count方法的典型用法代碼示例。如果您正苦於以下問題：C++ Technique::index_count方法的具體用法？C++ Technique::index_count怎麽用？C++ Technique::index_count使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類Technique的用法示例。
在下文中一共展示了Technique::index_count方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C++代碼示例。
示例1: render
bool SplineTest::render() {
ADD_PROFILE_SCOPE();
_ctx->begin_frame();
int w = GRAPHICS.width();
int h = GRAPHICS.height();
KASSERT(w && h);
XMFLOAT4X4 worldViewProj;
XMMATRIX xWorldViewProj = XMMatrixMultiply(XMLoadFloat4x4(&_view), XMLoadFloat4x4(&_proj));
XMStoreFloat4x4(&worldViewProj, XMMatrixMultiply(XMLoadFloat4x4(&_view), XMLoadFloat4x4(&_proj)));
XMFLOAT4 clipSpaceLightPos(0,100,200,1);
XMStoreFloat4(&clipSpaceLightPos, XMVector3TransformCoord(XMLoadFloat4(&clipSpaceLightPos), xWorldViewProj));
// divide by w -> ndc
clipSpaceLightPos.x /= clipSpaceLightPos.w;
clipSpaceLightPos.y /= clipSpaceLightPos.w;
clipSpaceLightPos.z /= clipSpaceLightPos.w;
// convert to texture space
struct {
XMFLOAT4 ssLight;
XMFLOAT4 texLight;
XMFLOAT2 screenSize;
} cbufferLight;
cbufferLight.texLight.x = (0.5f + 0.5f * clipSpaceLightPos.x);
cbufferLight.texLight.y = (1.0f - (0.5f + 0.5f * clipSpaceLightPos.y));
cbufferLight.ssLight.x = cbufferLight.texLight.x * w;
cbufferLight.ssLight.y = cbufferLight.texLight.y * h;
cbufferLight.screenSize = XMFLOAT2((float)w, (float)h);
ScopedRt rtColor(w, h, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateDepthBuffer, "rtColor");
ScopedRt rtOcclude(w, h, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateDepthBuffer, "rtOcclude");
{
Technique *technique;
Shader *ps, *vs;
setupTechnique(_ctx, _gradient_technique, true, &technique, &vs, nullptr, &ps);
_ctx->set_cbuffer(ps->find_cbuffer("WorldToScreenSpace"), 0, ShaderType::kPixelShader, &cbufferLight, sizeof(cbufferLight));
_ctx->set_render_target(rtColor, true);
_ctx->draw_indexed(technique->index_count(), 0, 0);
//_ctx->set_render_target(rtOcclude, true);
//_ctx->draw_indexed(technique->index_count(), 0, 0);
}
GraphicsObjectHandle rts[] = { rtColor, rtOcclude };
bool clear[] = { false, true };
_ctx->set_render_targets(rts, clear, 2);
int w4 = w/4;
int h4 = h/4;
ScopedRt rtMirror(w4, h4, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateDepthBuffer, "rtMirror");
renderSplines(rtMirror);
_ctx->set_render_target(rtColor, false);
renderParticles();
ScopedRt rtMirrorBlur1(w4, h4, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateUav, "rtMirrorBlur1");
ScopedRt rtMirrorBlur2(w4, h4, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateUav, "rtMirrorBlur2");
_blur.do_blur(4, rtMirror, rtMirrorBlur1, rtMirrorBlur2, w4, h4, _ctx);
renderPlane(rtMirrorBlur2);
int w2 = w/2;
int h2 = h/2;
ScopedRt rtDownscale(w2, h2, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv, "rtDownscale");
ScopedRt rtBlur1(w2, h2, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateUav, "rtBlur1");
ScopedRt rtBlur2(w2, h2, DXGI_FORMAT_R16G16B16A16_FLOAT, Graphics::kCreateSrv | Graphics::kCreateUav, "rtBlur2");
post_process(rtOcclude, rtDownscale, _scale);
_blur.do_blur(10, rtDownscale, rtBlur1, rtBlur2, w2, h2, _ctx);
{
Technique *technique;
Shader *ps, *vs;
setupTechnique(_ctx, _compose_technique, true, &technique, &vs, nullptr, &ps);
_ctx->set_cbuffer(ps->find_cbuffer("WorldToScreenSpace"), 0, ShaderType::kPixelShader, &cbufferLight, sizeof(cbufferLight));
_ctx->set_default_render_target(false);
TextureArray arr = { rtColor, rtBlur2 };
_ctx->set_samplers(ps->samplers());
_ctx->set_shader_resources(arr, ShaderType::kPixelShader);
_ctx->draw_indexed(technique->index_count(), 0, 0);
_ctx->unset_shader_resource(0, 2, ShaderType::kPixelShader);
}
_ctx->end_frame();
return true;
}