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These globals are now defined:
double duration; // The requested duration of the animation. double frame; // A value in [0, 1] of where we are in the animation.
This global is now defined:
GrBackendRenderTarget backEndRenderTarget;
GrBackendTexture backEndTextureRenderTarget;
Optional source image
These globals are now defined:
SkBitmap source; sk_sp<SkImage> image; GrBackendTexture backEndTexture; // GPU Only.
Note:
Adding comments with SK_FOLD_START and SK_FOLD_END creates
foldable code blocks.
These blocks will be folded by default and are useful for highlighting specific lines of code.
You can also use the keyboard shortcuts Ctrl+S and Ctrl+E in the code editor to set them.
These blocks will be folded by default and are useful for highlighting specific lines of code.
You can also use the keyboard shortcuts Ctrl+S and Ctrl+E in the code editor to set them.
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const SkScalar kLightHeight = 600;
const SkScalar kLightRadius = 800;
void DrawShadow(SkCanvas* canvas,
const SkPath& path,
SkColor color,
float elevation,
bool transparentOccluder,
SkScalar dpr) {
const SkScalar kAmbientAlpha = 0.039f;
const SkScalar kSpotAlpha = 0.25f;
uint32_t flags = transparentOccluder
? SkShadowFlags::kTransparentOccluder_ShadowFlag
: SkShadowFlags::kNone_ShadowFlag;
flags |= SkShadowFlags::kDirectionalLight_ShadowFlag;
SkColor inAmbient = SkColorSetA(color, kAmbientAlpha * SkColorGetA(color));
SkColor inSpot = SkColorSetA(color, kSpotAlpha * SkColorGetA(color));
SkColor ambientColor, spotColor;
SkShadowUtils::ComputeTonalColors(inAmbient, inSpot, &ambientColor,
&spotColor);
SkShadowUtils::DrawShadow(canvas, path, SkPoint3::Make(0, 0, dpr * elevation),
SkPoint3::Make(0, -1, 1),
kLightRadius / kLightHeight, ambientColor,
spotColor, flags);
}
void draw(SkCanvas* canvas) {
SkPath path;
path.addRoundRect({50, 50, 150, 150}, 10, 10);
canvas->drawColor(SK_ColorYELLOW);
DrawShadow(canvas, path, SK_ColorDKGRAY, 10, true, 1.0);
}
Compilation Warnings/Errors
Runtime Errors
Run Details
GL Version: OpenGL ES 3.0 SwiftShader 4.1.0.5 GL Vendor: Google Inc. GL Renderer: Google SwiftShader GL Extensions: GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth24 GL_OES_depth32 GL_OES_depth_texture GL_OES_depth_texture_cube_map GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_EGL_sync GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_framebuffer_object GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_texture_3D GL_OES_vertex_array_object GL_OES_vertex_half_float GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_draw_buffers GL_EXT_instanced_arrays GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_ARB_texture_rectangle GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_APPLE_texture_format_BGRA8888 GL_CHROMIUM_color_buffer_float_rgba GL_CHROMIUM_texture_filtering_hint GL_NV_depth_buffer_float2 GL_NV_fence GL_NV_framebuffer_blit GL_NV_read_depth GL_NV_read_depth_stencil GL_NV_read_stencil